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            "title": "Hubble Detects \"Sunscreen\" Layer on Distant Planet",
            "description": "ANIMATION Using NASA’s Hubble Telescope, scientists detected a stratosphere on the planet WASP-33b. A stratosphere occurs when molecules in the atmosphere absorb ultraviolet and visible light from the star. This absorption warms the stratosphere and acts as a kind of sunscreen layer for the planet below.Watch this video on YouTube. || CoolHotAll3av8_print.jpg (1024x576) [49.2 KB] || CoolHotAll3av8_searchweb.png (320x180) [48.2 KB] || CoolHotAll3av8_thm.png (80x40) [4.6 KB] || CoolHotAll3av8.mp4 (1920x1080) [46.7 MB] || CoolHotAll3av8sm.mp4 (1280x720) [16.4 MB] || CoolHotAll3av8sm.webm (1280x720) [2.2 MB] || ",
            "release_date": "2015-06-12T12:30:00-04:00",
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                "alt_text": "ANIMATION Using NASA’s Hubble Telescope, scientists detected a stratosphere on the planet WASP-33b. A stratosphere occurs when molecules in the atmosphere absorb ultraviolet and visible light from the star. This absorption warms the stratosphere and acts as a kind of sunscreen layer for the planet below.Watch this video on YouTube.",
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            "description": "Since the early 1990's, astronomers have known that extrasolar planets, or \"exoplanets,\" orbit stars light-years beyond our own solar system. Although most exoplanets are too distant to be directly imaged, detailed studies have been made of their size, composition, and even atmospheric makeup - but how? By observing periodic variations in the parent star's brightness and color, astronomers can indirectly determine an exoplanet's distance from its star, its size, and its mass. But to truly understand an exoplanet astronomers must study its atmosphere, and they do so by splitting apart the parent star's light during a planetary transit. || ",
            "release_date": "2013-12-03T12:00:00-05:00",
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                "alt_text": "Alien Atmospheres Although most of the planets outside of our solar system (called \"exoplanets\") are too distant to be seen, astronomers have developed indirect methods to determine their size, mass, and even their atmospheric makeup - taking us one step closer to finding a world like our own.Watch this video on the NASAexplorer YouTube channelFor complete transcript, click here.",
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