<div class="xblock xblock-public_view xblock-public_view-vertical" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="VerticalStudentView" data-usage-id="block-v1:MITx+16.885x+3T2019+type@vertical+block@fed5a7e7d49047f5ad3eac2363fb392f" data-has-score="False" data-runtime-version="1" data-block-type="vertical" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<h2 class="hd hd-2 unit-title">Lecture Files & Content</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+16.885x+3T2019+type@html+block@cdb4165e5f86485a9f11ffb19d8e2d8c">
<div class="xblock xblock-public_view xblock-public_view-html xmodule_display xmodule_HtmlBlock" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-usage-id="block-v1:MITx+16.885x+3T2019+type@html+block@cdb4165e5f86485a9f11ffb19d8e2d8c" data-has-score="False" data-runtime-version="1" data-block-type="html" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "HTMLModule"}
</script>
<p><a href="/assets/courseware/v1/9f7c5e18b19bafaae78f78328e579548/asset-v1:MITx+16.885x+3T2019+type@asset+block/Lecture_22___Jeff_Hoffman___Hubble_Space_Telescope.pdf" target="[object Object]">Lecture Slides</a></p>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="VerticalStudentView" data-usage-id="block-v1:MITx+16.885x+3T2019+type@vertical+block@004de26c3d9d4abfac888787970e9e47" data-has-score="False" data-runtime-version="1" data-block-type="vertical" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<h2 class="hd hd-2 unit-title">Hubble Space Telescope and the Space Shuttle: Part I</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+16.885x+3T2019+type@video+block@9e069980dda446c1bf386d5e88d153a2">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-usage-id="block-v1:MITx+16.885x+3T2019+type@video+block@9e069980dda446c1bf386d5e88d153a2" data-has-score="False" data-runtime-version="1" data-block-type="video" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Video</h3>
<div
id="video_9e069980dda446c1bf386d5e88d153a2"
class="video closed"
data-metadata='{"ytTestTimeout": 1500, "autohideHtml5": false, "generalSpeed": 1.0, "sources": ["https://d2f1egay8yehza.cloudfront.net/MIT168852018-V012400/MIT168852018-V012400.m3u8"], "end": 0.0, "saveStateUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@9e069980dda446c1bf386d5e88d153a2/handler/xmodule_handler/save_user_state", "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@9e069980dda446c1bf386d5e88d153a2/handler/transcript/available_translations", "completionEnabled": false, "transcriptLanguage": "en", "streams": "1.00:Vgg8uFKFI2Q", "captionDataDir": null, "ytApiUrl": "https://www.youtube.com/iframe_api", "lmsRootURL": "https://openlearninglibrary.mit.edu", "showCaptions": "true", "ytMetadataEndpoint": "", "autoplay": false, "recordedYoutubeIsAvailable": true, "savedVideoPosition": 0.0, "transcriptLanguages": {"en": "English"}, "poster": null, "autoAdvance": false, "prioritizeHls": false, "start": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@9e069980dda446c1bf386d5e88d153a2/handler/transcript/translation/__lang__", "completionPercentage": 0.95, "duration": 0.0, "saveStateEnabled": false, "publishCompletionUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@9e069980dda446c1bf386d5e88d153a2/handler/publish_completion"}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="9e069980dda446c1bf386d5e88d153a2"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
<h3 class="hd hd-4 downloads-heading sr" id="video-download-transcripts_9e069980dda446c1bf386d5e88d153a2">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_9e069980dda446c1bf386d5e88d153a2">
<div class="wrapper-download-transcripts">
<h4 class="hd hd-5">Transcripts</h4>
<ul class="list-download-transcripts">
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@9e069980dda446c1bf386d5e88d153a2/handler/transcript/download" data-value="srt">Download SubRip (.srt) file</a>
</li>
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@9e069980dda446c1bf386d5e88d153a2/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="VerticalStudentView" data-usage-id="block-v1:MITx+16.885x+3T2019+type@vertical+block@ac4fbd00cbd64c6a9e5c1c33467d6912" data-has-score="False" data-runtime-version="1" data-block-type="vertical" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<h2 class="hd hd-2 unit-title">Hubble Space Telescope and the Space Shuttle: Part II</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+16.885x+3T2019+type@video+block@6fc685a9a85c427bb6a0e40e7cd9896e">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-usage-id="block-v1:MITx+16.885x+3T2019+type@video+block@6fc685a9a85c427bb6a0e40e7cd9896e" data-has-score="False" data-runtime-version="1" data-block-type="video" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Video</h3>
<div
id="video_6fc685a9a85c427bb6a0e40e7cd9896e"
class="video closed"
data-metadata='{"ytTestTimeout": 1500, "autohideHtml5": false, "generalSpeed": 1.0, "sources": ["https://d2f1egay8yehza.cloudfront.net/MIT168852018-V012200/MIT168852018-V012200.m3u8"], "end": 0.0, "saveStateUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@6fc685a9a85c427bb6a0e40e7cd9896e/handler/xmodule_handler/save_user_state", "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@6fc685a9a85c427bb6a0e40e7cd9896e/handler/transcript/available_translations", "completionEnabled": false, "transcriptLanguage": "en", "streams": "1.00:QgpUk5IOGYc", "captionDataDir": null, "ytApiUrl": "https://www.youtube.com/iframe_api", "lmsRootURL": "https://openlearninglibrary.mit.edu", "showCaptions": "true", "ytMetadataEndpoint": "", "autoplay": false, "recordedYoutubeIsAvailable": true, "savedVideoPosition": 0.0, "transcriptLanguages": {"en": "English"}, "poster": null, "autoAdvance": false, "prioritizeHls": false, "start": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@6fc685a9a85c427bb6a0e40e7cd9896e/handler/transcript/translation/__lang__", "completionPercentage": 0.95, "duration": 0.0, "saveStateEnabled": false, "publishCompletionUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@6fc685a9a85c427bb6a0e40e7cd9896e/handler/publish_completion"}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="6fc685a9a85c427bb6a0e40e7cd9896e"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
<h3 class="hd hd-4 downloads-heading sr" id="video-download-transcripts_6fc685a9a85c427bb6a0e40e7cd9896e">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_6fc685a9a85c427bb6a0e40e7cd9896e">
<div class="wrapper-download-transcripts">
<h4 class="hd hd-5">Transcripts</h4>
<ul class="list-download-transcripts">
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@6fc685a9a85c427bb6a0e40e7cd9896e/handler/transcript/download" data-value="srt">Download SubRip (.srt) file</a>
</li>
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@6fc685a9a85c427bb6a0e40e7cd9896e/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="VerticalStudentView" data-usage-id="block-v1:MITx+16.885x+3T2019+type@vertical+block@dfbabca630ec40a9a507e8407b0b7fec" data-has-score="False" data-runtime-version="1" data-block-type="vertical" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<h2 class="hd hd-2 unit-title">Hubble Space Telescope and the Space Shuttle: Part III</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+16.885x+3T2019+type@video+block@bc3337a8edde4bd78781e3165b634825">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-usage-id="block-v1:MITx+16.885x+3T2019+type@video+block@bc3337a8edde4bd78781e3165b634825" data-has-score="False" data-runtime-version="1" data-block-type="video" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Video</h3>
<div
id="video_bc3337a8edde4bd78781e3165b634825"
class="video closed"
data-metadata='{"ytTestTimeout": 1500, "autohideHtml5": false, "generalSpeed": 1.0, "sources": ["https://d2f1egay8yehza.cloudfront.net/MIT168852018-V012500/MIT168852018-V012500.m3u8"], "end": 0.0, "saveStateUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@bc3337a8edde4bd78781e3165b634825/handler/xmodule_handler/save_user_state", "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@bc3337a8edde4bd78781e3165b634825/handler/transcript/available_translations", "completionEnabled": false, "transcriptLanguage": "en", "streams": "1.00:pWUMdJCS-fo", "captionDataDir": null, "ytApiUrl": "https://www.youtube.com/iframe_api", "lmsRootURL": "https://openlearninglibrary.mit.edu", "showCaptions": "true", "ytMetadataEndpoint": "", "autoplay": false, "recordedYoutubeIsAvailable": true, "savedVideoPosition": 0.0, "transcriptLanguages": {"en": "English"}, "poster": null, "autoAdvance": false, "prioritizeHls": false, "start": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@bc3337a8edde4bd78781e3165b634825/handler/transcript/translation/__lang__", "completionPercentage": 0.95, "duration": 0.0, "saveStateEnabled": false, "publishCompletionUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@bc3337a8edde4bd78781e3165b634825/handler/publish_completion"}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="bc3337a8edde4bd78781e3165b634825"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
<h3 class="hd hd-4 downloads-heading sr" id="video-download-transcripts_bc3337a8edde4bd78781e3165b634825">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_bc3337a8edde4bd78781e3165b634825">
<div class="wrapper-download-transcripts">
<h4 class="hd hd-5">Transcripts</h4>
<ul class="list-download-transcripts">
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@bc3337a8edde4bd78781e3165b634825/handler/transcript/download" data-value="srt">Download SubRip (.srt) file</a>
</li>
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@bc3337a8edde4bd78781e3165b634825/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="VerticalStudentView" data-usage-id="block-v1:MITx+16.885x+3T2019+type@vertical+block@210facfe7f9642529afb3c6320e564c5" data-has-score="False" data-runtime-version="1" data-block-type="vertical" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<h2 class="hd hd-2 unit-title">Hubble Space Telescope and the Space Shuttle: Part IV</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+16.885x+3T2019+type@video+block@ad088c11e98d4c6682268e0511c00f9f">
<div class="xblock xblock-public_view xblock-public_view-video xmodule_display xmodule_VideoBlock" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-usage-id="block-v1:MITx+16.885x+3T2019+type@video+block@ad088c11e98d4c6682268e0511c00f9f" data-has-score="False" data-runtime-version="1" data-block-type="video" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Video"}
</script>
<h3 class="hd hd-2">Video</h3>
<div
id="video_ad088c11e98d4c6682268e0511c00f9f"
class="video closed"
data-metadata='{"ytTestTimeout": 1500, "autohideHtml5": false, "generalSpeed": 1.0, "sources": ["https://d2f1egay8yehza.cloudfront.net/MIT168852018-V012100/MIT168852018-V012100.m3u8"], "end": 0.0, "saveStateUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@ad088c11e98d4c6682268e0511c00f9f/handler/xmodule_handler/save_user_state", "speed": null, "transcriptAvailableTranslationsUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@ad088c11e98d4c6682268e0511c00f9f/handler/transcript/available_translations", "completionEnabled": false, "transcriptLanguage": "en", "streams": "1.00:fcucFcwa6OM", "captionDataDir": null, "ytApiUrl": "https://www.youtube.com/iframe_api", "lmsRootURL": "https://openlearninglibrary.mit.edu", "showCaptions": "true", "ytMetadataEndpoint": "", "autoplay": false, "recordedYoutubeIsAvailable": true, "savedVideoPosition": 0.0, "transcriptLanguages": {"en": "English"}, "poster": null, "autoAdvance": false, "prioritizeHls": false, "start": 0.0, "transcriptTranslationUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@ad088c11e98d4c6682268e0511c00f9f/handler/transcript/translation/__lang__", "completionPercentage": 0.95, "duration": 0.0, "saveStateEnabled": false, "publishCompletionUrl": "/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@ad088c11e98d4c6682268e0511c00f9f/handler/publish_completion"}'
data-bumper-metadata='null'
data-autoadvance-enabled="False"
data-poster='null'
tabindex="-1"
>
<div class="focus_grabber first"></div>
<div class="tc-wrapper">
<div class="video-wrapper">
<span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span>
<span tabindex="-1" class="btn-play fa fa-youtube-play fa-2x is-hidden" aria-hidden="true" aria-label="Play video"></span>
<div class="video-player-pre"></div>
<div class="video-player">
<div id="ad088c11e98d4c6682268e0511c00f9f"></div>
<h4 class="hd hd-4 video-error is-hidden">No playable video sources found.</h4>
<h4 class="hd hd-4 video-hls-error is-hidden">
Your browser does not support this video format. Try using a different browser.
</h4>
</div>
<div class="video-player-post"></div>
<div class="closed-captions"></div>
<div class="video-controls is-hidden">
<div>
<div class="vcr"><div class="vidtime">0:00 / 0:00</div></div>
<div class="secondary-controls"></div>
</div>
</div>
</div>
</div>
<div class="focus_grabber last"></div>
<h3 class="hd hd-4 downloads-heading sr" id="video-download-transcripts_ad088c11e98d4c6682268e0511c00f9f">Downloads and transcripts</h3>
<div class="wrapper-downloads" role="region" aria-labelledby="video-download-transcripts_ad088c11e98d4c6682268e0511c00f9f">
<div class="wrapper-download-transcripts">
<h4 class="hd hd-5">Transcripts</h4>
<ul class="list-download-transcripts">
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@ad088c11e98d4c6682268e0511c00f9f/handler/transcript/download" data-value="srt">Download SubRip (.srt) file</a>
</li>
<li class="transcript-option">
<a class="btn btn-link" href="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@video+block@ad088c11e98d4c6682268e0511c00f9f/handler/transcript/download" data-value="txt">Download Text (.txt) file</a>
</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="xblock xblock-public_view xblock-public_view-vertical" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="VerticalStudentView" data-usage-id="block-v1:MITx+16.885x+3T2019+type@vertical+block@5d01a264e93a4aa4a83b501efbf47958" data-has-score="False" data-runtime-version="1" data-block-type="vertical" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<h2 class="hd hd-2 unit-title">Questions</h2>
<div class="vert-mod">
<div class="vert vert-0" data-id="block-v1:MITx+16.885x+3T2019+type@problem+block@46b092b277ac42fab0a176b0c088d8bc">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-usage-id="block-v1:MITx+16.885x+3T2019+type@problem+block@46b092b277ac42fab0a176b0c088d8bc" data-has-score="True" data-runtime-version="1" data-block-type="problem" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_46b092b277ac42fab0a176b0c088d8bc" class="problems-wrapper" role="group"
aria-labelledby="46b092b277ac42fab0a176b0c088d8bc-problem-title"
data-problem-id="block-v1:MITx+16.885x+3T2019+type@problem+block@46b092b277ac42fab0a176b0c088d8bc" data-url="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@problem+block@46b092b277ac42fab0a176b0c088d8bc/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="46b092b277ac42fab0a176b0c088d8bc-problem-title" aria-describedby="block-v1:MITx+16.885x+3T2019+type@problem+block@46b092b277ac42fab0a176b0c088d8bc-problem-progress" tabindex="-1">
Question 1
</h3>
<div class="problem-progress" id="block-v1:MITx+16.885x+3T2019+type@problem+block@46b092b277ac42fab0a176b0c088d8bc-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div id="formulaequationinput_46b092b277ac42fab0a176b0c088d8bc_2_1" class="inputtype formulaequationinput">
<div class="unanswered">
<label class="problem-group-label" for="input_46b092b277ac42fab0a176b0c088d8bc_2_1" id="label_46b092b277ac42fab0a176b0c088d8bc_2_1">How many Hubble Space Telescope servicing missions have there been?</label>
<input type="text" name="input_46b092b277ac42fab0a176b0c088d8bc_2_1" id="input_46b092b277ac42fab0a176b0c088d8bc_2_1" data-input-id="46b092b277ac42fab0a176b0c088d8bc_2_1" value="" aria-describedby="status_46b092b277ac42fab0a176b0c088d8bc_2_1" size="20"/>
<span class="trailing_text" id="trailing_text_46b092b277ac42fab0a176b0c088d8bc_2_1"/>
<span class="status unanswered" id="status_46b092b277ac42fab0a176b0c088d8bc_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
<p id="answer_46b092b277ac42fab0a176b0c088d8bc_2_1" class="answer"/>
<div id="input_46b092b277ac42fab0a176b0c088d8bc_2_1_preview" class="equation">
\(\)
<img src="/static/images/spinner.bc34f953403f.gif" class="loading" alt="Loading"/>
</div>
</div>
<div class="script_placeholder" data-src="/static/js/capa/src/formula_equation_preview.b1967ab28c31.js"/>
</div>
<div class="solution-span">
<span id="solution_46b092b277ac42fab0a176b0c088d8bc_solution_1"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 1" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_46b092b277ac42fab0a176b0c088d8bc" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_46b092b277ac42fab0a176b0c088d8bc">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="46b092b277ac42fab0a176b0c088d8bc-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="46b092b277ac42fab0a176b0c088d8bc-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="46b092b277ac42fab0a176b0c088d8bc-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-1" data-id="block-v1:MITx+16.885x+3T2019+type@problem+block@e866dd0fd1d44953b6239ea4a0d2b1a0">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-usage-id="block-v1:MITx+16.885x+3T2019+type@problem+block@e866dd0fd1d44953b6239ea4a0d2b1a0" data-has-score="True" data-runtime-version="1" data-block-type="problem" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_e866dd0fd1d44953b6239ea4a0d2b1a0" class="problems-wrapper" role="group"
aria-labelledby="e866dd0fd1d44953b6239ea4a0d2b1a0-problem-title"
data-problem-id="block-v1:MITx+16.885x+3T2019+type@problem+block@e866dd0fd1d44953b6239ea4a0d2b1a0" data-url="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@problem+block@e866dd0fd1d44953b6239ea4a0d2b1a0/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="e866dd0fd1d44953b6239ea4a0d2b1a0-problem-title" aria-describedby="block-v1:MITx+16.885x+3T2019+type@problem+block@e866dd0fd1d44953b6239ea4a0d2b1a0-problem-progress" tabindex="-1">
Question 2
</h3>
<div class="problem-progress" id="block-v1:MITx+16.885x+3T2019+type@problem+block@e866dd0fd1d44953b6239ea4a0d2b1a0-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1">
<fieldset aria-describedby="status_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1">
<legend id="e866dd0fd1d44953b6239ea4a0d2b1a0_2_1-legend" class="response-fieldset-legend field-group-hd">Which of the following are reasons why the Hubble Space Telescope (HST) has been such a scientifically productive mission?</legend>
<div class="field">
<input type="checkbox" name="input_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1[]" id="input_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1_choice_0" class="field-input input-checkbox" value="choice_0"/><label id="e866dd0fd1d44953b6239ea4a0d2b1a0_2_1-choice_0-label" for="input_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1"> After the initial rescue mission, HST now has nearly perfect optics.
</label>
</div>
<div class="field">
<input type="checkbox" name="input_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1[]" id="input_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1_choice_1" class="field-input input-checkbox" value="choice_1"/><label id="e866dd0fd1d44953b6239ea4a0d2b1a0_2_1-choice_1-label" for="input_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1"> Successive servicing missions have replaced older observing instruments with new, state-of-the-art instruments, keeping up with new developments in astronomical technology.
</label>
</div>
<div class="field">
<input type="checkbox" name="input_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1[]" id="input_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1_choice_2" class="field-input input-checkbox" value="choice_2"/><label id="e866dd0fd1d44953b6239ea4a0d2b1a0_2_1-choice_2-label" for="input_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1"> HST&#8217;s mirror is larger than any mirror on ground-based telescopes, so it can collect more light and see galaxies farther away.
</label>
</div>
<span id="answer_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1"/>
</fieldset>
<div class="indicator-container">
<span class="status unanswered" id="status_e866dd0fd1d44953b6239ea4a0d2b1a0_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
</div>
</div><div class="solution-span">
<span id="solution_e866dd0fd1d44953b6239ea4a0d2b1a0_solution_1"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 2" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_e866dd0fd1d44953b6239ea4a0d2b1a0" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_e866dd0fd1d44953b6239ea4a0d2b1a0">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="e866dd0fd1d44953b6239ea4a0d2b1a0-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="e866dd0fd1d44953b6239ea4a0d2b1a0-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="e866dd0fd1d44953b6239ea4a0d2b1a0-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
<div class="vert vert-2" data-id="block-v1:MITx+16.885x+3T2019+type@problem+block@22176f29d0714491880180fbcf6c46bf">
<div class="xblock xblock-public_view xblock-public_view-problem xmodule_display xmodule_ProblemBlock" data-course-id="course-v1:MITx+16.885x+3T2019" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-usage-id="block-v1:MITx+16.885x+3T2019+type@problem+block@22176f29d0714491880180fbcf6c46bf" data-has-score="True" data-runtime-version="1" data-block-type="problem" data-request-token="4707c558edb011eeb4591299a322540b" data-graded="True">
<script type="json/xblock-args" class="xblock-json-init-args">
{"xmodule-type": "Problem"}
</script>
<div id="problem_22176f29d0714491880180fbcf6c46bf" class="problems-wrapper" role="group"
aria-labelledby="22176f29d0714491880180fbcf6c46bf-problem-title"
data-problem-id="block-v1:MITx+16.885x+3T2019+type@problem+block@22176f29d0714491880180fbcf6c46bf" data-url="/courses/course-v1:MITx+16.885x+3T2019/xblock/block-v1:MITx+16.885x+3T2019+type@problem+block@22176f29d0714491880180fbcf6c46bf/handler/xmodule_handler"
data-problem-score="0"
data-problem-total-possible="1"
data-attempts-used="0"
data-content="
<h3 class="hd hd-3 problem-header" id="22176f29d0714491880180fbcf6c46bf-problem-title" aria-describedby="block-v1:MITx+16.885x+3T2019+type@problem+block@22176f29d0714491880180fbcf6c46bf-problem-progress" tabindex="-1">
Question 3
</h3>
<div class="problem-progress" id="block-v1:MITx+16.885x+3T2019+type@problem+block@22176f29d0714491880180fbcf6c46bf-problem-progress"></div>
<div class="problem">
<div>
<div class="wrapper-problem-response" tabindex="-1" aria-label="Question 1" role="group"><div class="choicegroup capa_inputtype" id="inputtype_22176f29d0714491880180fbcf6c46bf_2_1">
<fieldset aria-describedby="status_22176f29d0714491880180fbcf6c46bf_2_1">
<legend id="22176f29d0714491880180fbcf6c46bf_2_1-legend" class="response-fieldset-legend field-group-hd">The element of the Hubble Space Telescope that has proven most vulnerable to failure is:</legend>
<div class="field">
<input type="radio" name="input_22176f29d0714491880180fbcf6c46bf_2_1" id="input_22176f29d0714491880180fbcf6c46bf_2_1_choice_0" class="field-input input-radio" value="choice_0"/><label id="22176f29d0714491880180fbcf6c46bf_2_1-choice_0-label" for="input_22176f29d0714491880180fbcf6c46bf_2_1_choice_0" class="response-label field-label label-inline" aria-describedby="status_22176f29d0714491880180fbcf6c46bf_2_1"> the batteries
</label>
</div>
<div class="field">
<input type="radio" name="input_22176f29d0714491880180fbcf6c46bf_2_1" id="input_22176f29d0714491880180fbcf6c46bf_2_1_choice_1" class="field-input input-radio" value="choice_1"/><label id="22176f29d0714491880180fbcf6c46bf_2_1-choice_1-label" for="input_22176f29d0714491880180fbcf6c46bf_2_1_choice_1" class="response-label field-label label-inline" aria-describedby="status_22176f29d0714491880180fbcf6c46bf_2_1"> the solar arrays
</label>
</div>
<div class="field">
<input type="radio" name="input_22176f29d0714491880180fbcf6c46bf_2_1" id="input_22176f29d0714491880180fbcf6c46bf_2_1_choice_2" class="field-input input-radio" value="choice_2"/><label id="22176f29d0714491880180fbcf6c46bf_2_1-choice_2-label" for="input_22176f29d0714491880180fbcf6c46bf_2_1_choice_2" class="response-label field-label label-inline" aria-describedby="status_22176f29d0714491880180fbcf6c46bf_2_1"> the gyroscopes
</label>
</div>
<div class="field">
<input type="radio" name="input_22176f29d0714491880180fbcf6c46bf_2_1" id="input_22176f29d0714491880180fbcf6c46bf_2_1_choice_3" class="field-input input-radio" value="choice_3"/><label id="22176f29d0714491880180fbcf6c46bf_2_1-choice_3-label" for="input_22176f29d0714491880180fbcf6c46bf_2_1_choice_3" class="response-label field-label label-inline" aria-describedby="status_22176f29d0714491880180fbcf6c46bf_2_1"> the computers
</label>
</div>
<span id="answer_22176f29d0714491880180fbcf6c46bf_2_1"/>
</fieldset>
<div class="indicator-container">
<span class="status unanswered" id="status_22176f29d0714491880180fbcf6c46bf_2_1" data-tooltip="Not yet answered.">
<span class="sr">unanswered</span><span class="status-icon" aria-hidden="true"/>
</span>
</div>
</div><div class="solution-span">
<span id="solution_22176f29d0714491880180fbcf6c46bf_solution_1"/>
</div></div>
</div>
<div class="action">
<input type="hidden" name="problem_id" value="Question 3" />
<div class="submit-attempt-container">
<button type="button" class="submit btn-brand" data-submitting="Submitting" data-value="Submit" data-should-enable-submit-button="True" aria-describedby="submission_feedback_22176f29d0714491880180fbcf6c46bf" >
<span class="submit-label">Submit</span>
</button>
<div class="submission-feedback" id="submission_feedback_22176f29d0714491880180fbcf6c46bf">
<span class="sr">Some problems have options such as save, reset, hints, or show answer. These options follow the Submit button.</span>
</div>
</div>
<div class="problem-action-buttons-wrapper">
</div>
</div>
<div class="notification warning notification-gentle-alert
is-hidden"
tabindex="-1">
<span class="icon fa fa-exclamation-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="22176f29d0714491880180fbcf6c46bf-problem-title">
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification warning notification-save
is-hidden"
tabindex="-1">
<span class="icon fa fa-save" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="22176f29d0714491880180fbcf6c46bf-problem-title">None
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
<div class="notification general notification-show-answer
is-hidden"
tabindex="-1">
<span class="icon fa fa-info-circle" aria-hidden="true"></span>
<span class="notification-message" aria-describedby="22176f29d0714491880180fbcf6c46bf-problem-title">Answers are displayed within the problem
</span>
<div class="notification-btn-wrapper">
<button type="button" class="btn btn-default btn-small notification-btn review-btn sr">Review</button>
</div>
</div>
</div>
"
data-graded="True">
<p class="loading-spinner">
<i class="fa fa-spinner fa-pulse fa-2x fa-fw"></i>
<span class="sr">Loading…</span>
</p>
</div>
</div>
</div>
</div>
</div>
© All Rights Reserved