1 00:00:00,090 --> 00:00:04,170 From a million miles away, the Deep Space Climate Observatory (DSCOVR) 2 00:00:04,170 --> 00:00:08,370 is capturing sparkling glints of light in images of Earth. 3 00:00:08,370 --> 00:00:12,560 The Earth Polychromatic Imaging Camera (EPIC) 4 00:00:12,560 --> 00:00:16,580 on board DSCOVR has seen hundreds of these flashes, 5 00:00:16,580 --> 00:00:20,960 caused by sunlight reflecting off tiny ice particles floating in the air almost horizontally. 6 00:00:20,960 --> 00:00:25,140 DSCOVR is not the first satellite to see the sun glints. 7 00:00:25,140 --> 00:00:29,250 In 1990, the Galileo spacecraft 8 00:00:29,250 --> 00:00:33,480 captured some of these flashes in Earth’s atmosphere while en route to Jupiter. 9 00:00:33,480 --> 00:00:37,680 Studying the glints from DSCOVR can offer insight 10 00:00:37,680 --> 00:00:41,800 about how light reflects off Earth’s atmosphere, 11 00:00:41,800 --> 00:00:46,010 and how that could affect the planet’s radiation budget. 12 00:00:46,010 --> 00:00:50,070 In the future, a similar method could potentially be used to identify ice crystals 13 00:00:50,070 --> 00:00:58,717 in the atmosphere of exoplanets, an early step to evaluating their habitability.