{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='NASA | NASA\u0026#39;s Heliophysics Fleet Captures May 1, 2013 Prominence Eruption and CME' data-url='/boclips/videos/627b3ff5ef77c448ec160d56' data-video-url='/boclips/videos/627b3ff5ef77c448ec160d56' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nNASA | NASA\u0026#39;s Heliophysics Fleet Captures May 1, 2013 Prominence Eruption and CME\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"384398\" href=\"/search?publisher_ids%5B%5D=384398\"\u003eNASA\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eOn May 1, 2013, NASA's Solar Dynamics Observatory (SDO) watched as an active region just around the East limb (left edge) of the sun erupted with a huge cloud of solar material -- a heated, charged gas called plasma. This eruption,...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eOn May 1, 2013, NASA's Solar Dynamics Observatory (SDO) watched as an active region just around the East limb (left edge) of the sun erupted with a huge cloud of solar material -- a heated, charged gas called plasma. This eruption, called a coronal mass ejection, or CME, sent the plasma streaming out through the solar system. Viewing the sun in the extreme ultraviolet wavelength of 304 angstroms, SDO provided a beautiful view of the initial arc as it left the solar surface. \u003cbr/\u003e\u003cbr/\u003eSuch eruptions soon leave SDO's field of view, but other satellites in NASA's Heliophysics fleet can pick them up, tracking such space weather to determine if they are headed toward Earth or spacecraft near other planets.  With advance warning, many space assets can be put into safe mode and protect themselves from the effects of such particle radiation. \u003cbr/\u003e\u003cbr/\u003eIn addition to the images captured by SDO, the May 1, 2013 CME was also observed by the ESA/NASA Solar and Heliospheric Observatory (SOHO). SOHO houses two overlapping coronagraphs -- telescopes where the bright sun is blocked by a disk so it doesn't overpower the fainter solar atmosphere -- and they both saw the CME continue outward. The LASCO C2 coronagraph shows the region out to about 2.5 million miles. The LASCO C3 coronagraph expands even farther out to around 13.5 million miles. Both of these instruments show the CME as it expands and becomes fainter on its trip away from the sun.\u003cbr/\u003e\u003cbr/\u003eNASA's Solar Terrestrial Relations Observatory (STEREO) Ahead satellite saw the eruption from a very different angle. It, along with its twin STEREO Behind, is orbiting at a similar distance as Earth. STEREO-A orbits slightly faster than Earth and STEREO-B orbits slightly slower.  Currently, STEREO-A is more than two-thirds of the way to being directly behind the sun, and has a view of the far side of the sun. From this perspective, the CME came off the right side of the sun. STEREO has an extreme ultraviolet camera similar to SDO's, but it also has coronagraphs like SOHO. As a result, using its two inner coronagraphs, was able to track the CME from the solar surface out to 6.3 million miles.\u003cbr/\u003e\u003cbr/\u003ePut together, these three missions provide excellent coverage of a wide variety of solar events, a wealth of scientific data and lots of beautiful imagery.\u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e    \u003cbr/\u003e      Chapters\u003cbr/\u003e      \u003cbr/\u003e    \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e  View all\u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e  \u003cbr/\u003e    \u003cbr/\u003e       \u003cbr/\u003e    \u003cbr/\u003e    \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e    \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e      \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e    On May 1, 2013 SDO caught a beautiful prominence eruption on the sun\u003cbr/\u003e    0:08\u003cbr/\u003e  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e      \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e    It takes NASA's heliophysics fleet working together to see the bigger picture\u003cbr/\u003e    0:45\u003cbr/\u003e  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e      \u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e    STEREO Ahead, watching the sun's far side, saw it from a different angle.\u003cbr/\u003e    1:23\u003cbr/\u003e  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e  \u003cbr/\u003e  \u003cbr/\u003e    \u003cbr/\u003e       \u003cbr/\u003e    \u003cbr/\u003e    \u003cbr/\u003e  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton 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