HD 80606b is a gas giant planet in an eccentric orbit around its star. Every 111 days, the planet passes within 2.8 million miles of the star's surface. During the close approach of Nov. 20, 2007, NASA's Spitzer Space Telescope observed the system for 30 hours. Scientists modeled the response of the planet's upper atmosphere to the extreme heating. The animation based on their simulations begins 4.4 days after closest approach, when the hot hemisphere has rotated into view. A massive storm has formed in response to the pulse of heat delivered during the planet's close swing past its star. Successive frames, spaced every 12 hours, show the hot spot rotating out of view. The Spitzer observations represent the first time astronomers have detected weather changes in real time on a planet outside our solar system. ||

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The spectacular barred spiral galaxy NGC 6872 has ranked among the biggest stellar systems for decades. This enormous spiral is 522,000 light-years across from the tip of one outstretched arm to the tip of the other, making it about five times the size of our home galaxy, the Milky Way. The galaxy's unusual size and appearance stem from interaction with a much smaller disk galaxy named IC 4970 (circled in yellow), which has only about one-fifth the mass of NGC 6872. This previously unsuspected tidal dwarf galaxy candidate appears only in the ultraviolet. The odd couple is located 212 million light-years from Earth in the southern constellation Pavo. This composite image of the giant barred spiral galaxy NGC 6872 combines ultraviolet data from NASA's Galaxy Evolution Explorer (GALEX) and infrared data acquired by NASA's Spitzer Space Telescope with visible light images from the European Southern Observatory's Very Large Telescope. Images of lower resolution from the Digital Sky Survey were used to fill in marginal areas not covered by the other data. ||

360 degree mosaic of Milky Way Galaxy || ssc2014-02a_print.jpg (1024x618) [141.1 KB] || ssc2014-02a_web.jpg (319x193) [38.6 KB] || ssc2014-02a_searchweb.png (320x180) [71.2 KB] || ssc2014-02a_web.png (320x193) [71.6 KB] || ssc2014-02a_thm.png (80x40) [19.8 KB] || ssc2014-02a.tif (4000x2417) [7.3 MB] || ssc2014-02a.hwshow [71 bytes] ||

Animations of images originally published at https://chandra.harvard.edu/photo/2024/casa/ and https://www.nasa.gov/image-article/nasa-telescopes-chase-down-green-monster-in-stars-debris/.Astronomers have combined data from NASA’s Chandra X-ray Observatory and James Webb Space Telescope to study supernova remnant Cassiopeia A (Cas A). This work has helped explain an unusual structure called the “Green Monster”. Composite images from Chandra, Webb, Hubble, NuSTAR, and Spitzer reveal where elements such as silicon, iron, and titanium are located. Comparing where certain elements are with the location of the blast wave, researchers conclude that the Green Monster was created by a blast wave from the exploded star slamming into material surrounding it. ||

For the first time astronomers have combined data from NASA’s Chandra X-ray Observatory and James Webb Space Telescope to study the well-known supernova remnant Cassiopeia A (Cas A). This work has helped explain an unusual structure in the debris from the destroyed star called the “Green Monster”, first discovered in Webb data in April 2023. The research has also uncovered new details about the explosion that created Cas A about 340 years ago, from Earth’s perspective.A new composite image contains X-rays from Chandra (blue), infrared data from Webb (red, green, blue), and optical data from Hubble (red and white). The outer parts of the image also include infrared data from NASA’s Spitzer Space Telescope (red, green and blue). The outline of the Green Monster can be seen by mousing over the image in the original feature, located here: chandra.cfa.harvard.edu/photo/2024/casa/.The Chandra data reveals hot gas, mostly from supernova debris from the destroyed star, including elements like silicon and iron. In the outer parts of Cas A the expanding blast wave is striking surrounding gas that was ejected by the star before the explosion. The X-rays are produced by energetic electrons spiraling around magnetic field lines in the blast wave. These electrons light up as thin arcs in the outer regions of Cas A, and in parts of the interior. Webb highlights infrared emission from dust that is warmed up because it is embedded in the hot gas seen by Chandra, and from much cooler supernova debris. The Hubble data shows stars in the field.Detailed analysis by the researchers found that filaments in the outer part of Cas A, from the blast wave, closely matched the X-ray properties of the Green Monster, including less iron and silicon than in the supernova debris. This interpretation is apparent from the color Chandra image, which shows that the colors inside the Green Monster’s outline best match with the colors of the blast wave rather than the debris with iron and silicon. The authors conclude that the Green Monster was created by a blast wave from the exploded star slamming into material surrounding it, supporting earlier suggestions from the Webb data alone.The debris from the explosion is seen by Chandra because it is heated to tens of millions of degrees by shock waves, akin to sonic booms from a supersonic plane. Webb can see some material that has not been affected by shock waves, what can be called “pristine” debris.Read more here: chandra.cfa.harvard.edu/photo/2024/casa/. || 53453268481_e80cfca2d4_o.jpg (4200x3386) [7.1 MB] || 53453268481_e80cfca2d4_o_searchweb.png (320x180) [121.1 KB] || 53453268481_e80cfca2d4_o_thm.png (80x40) [15.9 KB] || webb-chandra-hubble-and-spitzer-all-explore-cassiopeia-a-composite-all-4.hwshow [344 bytes] ||

Best of Hubble Broll includes launch and deploy, and Extravehicular Activity. || Screen_Shot_2015-04-16_at_5.33.09_PM.png (1616x903) [1.6 MB] || Screen_Shot_2015-04-16_at_5.33.09_PM_print.jpg (1024x572) [127.2 KB] || Screen_Shot_2015-04-16_at_5.33.09_PM_web.jpg (319x178) [19.9 KB] || Screen_Shot_2015-04-16_at_5.33.09_PM_searchweb.png (320x180) [87.4 KB] || Screen_Shot_2015-04-16_at_5.33.09_PM_web.png (320x178) [86.5 KB] || Screen_Shot_2015-04-16_at_5.33.09_PM_thm.png (80x40) [8.2 KB] || Best_of_Hubble_appletv.m4v (960x540) [322.7 MB] || Best_of_Hubble_youtube_hq.mov (1280x720) [1.0 GB] || Best_of_Hubble_1280x720.wmv (1280x720) [395.9 MB] || Best_of_Hubble_prores.mov (1280x720) [11.6 GB] || Best_of_Hubble_youtube_hq.webm (1280x720) [84.8 MB] || Best_of_Hubble_720x480.wmv (720x480) [366.8 MB] || Best_of_Hubble_ipod_lg.m4v (640x360) [126.5 MB] || Best_of_Hubble.mov (640x360) [322.1 MB] || Best_of_Hubble_nasaportal.mov (640x360) [322.1 MB] || Best_of_Hubble_ipod_sm.mp4 (320x240) [67.5 MB] ||

To celebrate Spitzer's 16th birthday, the Hubble Space Telescope team decided to put together a special present for their fellow "observing buddy."Hubble and Spitzer have observed many of the same astronomical objects over the years; and with Spitzer getting data from infrared, and Hubble getting data from visible, ultraviolet, and some near-infrared, the two telescopes have helped uncover some of the mysteries of the universe.For more information, visit nasa.gov/hubble.Credit: NASA’s Goddard Space Flight Center / Paul MorrisMusic Credits: "Friends Hold Fast" by Tarek Modi [PRS]; Killer Tracks Production Music ||

Watch to learn how a possible giant planet may have survived its tiny star’s chaotic history. Jupiter-size WD 1856 b is nearly seven times larger than the white dwarf it orbits every day and a half. Astronomers discovered it using data from NASA’s Transiting Exoplanet Survey Satellite and now-retired Spitzer Space Telescope.Credit: NASA/JPL-Caltech/NASA's Goddard Space Flight CenterMusic: "Titanium" from Killer Tracks.Complete transcript available. || wd_1856_still.jpg (1920x1080) [306.2 KB] || wd_1856_still_print.jpg (1024x576) [106.2 KB] || wd_1856_still_searchweb.png (320x180) [46.5 KB] || wd_1856_still_web.png (320x180) [46.5 KB] || wd_1856_still_thm.png (80x40) [4.2 KB] || WD_1856_HQ.mp4 (1920x1080) [279.8 MB] || WD_1856_LQ.mp4 (1920x1080) [146.4 MB] || WD_1856_prores.mov (1920x1080) [1.5 GB] || WD_1856_LQ.webm (1920x1080) [17.1 MB] || WD_1856_prores.en_US.srt [3.0 KB] || WD_1856_prores.en_US.vtt [2.9 KB] ||

These videos are designed to accompany live orchestral performances. For more information and inquiries about their use, please contact Scott Wiessinger at scott.wiessinger@nasa.gov. ||