2022年12月21日 Sun Halo at Sixty-three Degrees North Image Credit & Copyright: Goran Strand Explanation: Happy Solstice! Today is the December solstice, marking an astronomical beginning of summer in the southern hemisphere and winter in the north. On its yearly trek through planet Earth’s s […]
2022年12月19日 The Tadpole Nebula in Gas and Dust Image Credit & Copyright: Craig Stocks (Utah Desert Remote Observatories) Explanation: What’s causing the commotion in the Tadpole Nebula? Star formation. Dusty emission in the Tadpole Nebula, IC 410, lies about 12,000 light-years away in the
2022年12月18日 25 Brightest Stars in the Night Sky Image Credit & Copyright: Tragoolchitr Jittasaiyapan Explanation: Do you know the names of some of the brightest stars? It’s likely that you do, even though some bright stars have names so old they date back to near the beginning of written
2022年12月17日 Apollo 17 VIP Site Anaglyph Image Credit: Gene Cernan, Apollo 17, NASA; Anaglyph by Erik van Meijgaarden Explanation: Get out your red/blue glasses and check out this stereo scene from Taurus-Littrow valley on the Moon! The color anaglyph features a detailed 3D view of Apollo 17’s
2022年12月15日 Full Moon, Full Mars Image Credit & Copyright: Tomas Slovinsky Explanation: On December 8 a full Moon and a full Mars were close, both bright and opposite the Sun in planet Earth’s sky. In fact Mars was occulted, passing behind the Moon when viewed from some locations across E
2022年12月14日 Lunar Dust and Duct Tape Image Credit: Apollo 17, NASA Explanation: Why is the Moon so dusty? On Earth, rocks are weathered by wind and water, creating soil and sand. On the Moon, the history of constant micrometeorite bombardment has blasted away at the rocky surface creating a layer of
2022年12月13日 An Artful Sky over Lofoten Islands Image Credit & Copyright: Giulio Cobianchi Explanation: Can the night sky be both art and science? If so, perhaps the featured image is an example. The digital panorama was composed of 10 landscape and 10 sky images all taken on the same night, fro
2022年12月12日 An Unusual Globule in IC 1396 Image Credit & Copyright: Bernard Miller Explanation: Is there a monster in IC 1396? Known to some as the Elephant’s Trunk Nebula, parts of gas and dust clouds of this star formation region may appear to take on foreboding forms, some nearly human
