保护地球, 探索宇宙, 发现文明
2023年3月2日 Unraveling NGC 3169 Image Credit & Copyright: Mike Selby & Mark Hanson Explanation: Spiral galaxy NGC 3169 looks to be unraveling like a ball of cosmic yarn. It lies some 70 million light-years away, south of bright star Regulus toward the faint constellation Sextans. Wound up spiral arms are pulled out into sweeping tidal tails as NGC 31...
2023年2月23日 Arp 78: Peculiar Galaxy in Aries Image Credit & Copyright: Josep Drudis Explanation: Peculiar spiral galaxy Arp 78 is found within the boundaries of the head strong constellation Aries. Some 100 million light-years beyond the stars and nebulae of our Milky Way galaxy, the island universe is an enormous 200,000 light-years across. Also known a...
2022年11月8日 Galaxies: Wild’s Triplet from Hubble Image Credit: ESA/Hubble, NASA, Dark Energy Survey/DOE/FNAL/DECam/CTIO/NOIRLab/NSF/AURA, J. Dalcanton Explanation: How many galaxies are interacting here? This grouping of galaxies is called the Wild Triplet, not only for the discoverer, but for the number of bright galaxies that appear. It had been assum...
2022年9月2日 M51: The Whirlpool Galaxy Image Credit & Copyright: Fabian Neyer Explanation: Find the Big Dipper and follow the handle away from the dipper’s bowl until you get to the last bright star. Then, just slide your telescope a little south and west and you’ll come upon this stunning pair of interacting galaxies, the 51st entry in Charles...
2022年8月24日 The Cartwheel Galaxy from Webb Image Credit: NASA, ESA, CSA, STScI, Webb ERO Production Team Explanation: To some, it looks like a wheel of a cart. In fact, because of its outward appearance, the presence of a central galaxy, and its connection with what looks like the spokes of a wheel, the galaxy on the right is known as the Cartwheel Galaxy. To...
2022年6月10日 Arp 286: Trio in Virgo Image Credit & Copyright: Nicolas Rolland, Telescope.Live Explanation: This colorful telescopic field of view features a trio of interacting galaxies almost 90 million light-years away, toward the constellation Virgo. On the right two spiky, foreground Milky Way stars echo the extragalactic hues, a reminder that stars i...
2022年3月24日 Arp 78: Peculiar Galaxy in Aries Image Credit & License: International Gemini Observatory / NOIRLab / NSF / AURA Processing: T.A. Rector (Univ. Alaska Anchorage), J. Miller (Gemini Observatory/NOIRLab), M. Zamani & D. de Martin Explanation: Peculiar spiral galaxy Arp 78 is found within the boundaries of the head strong constellation Arie...
2022年2月19日 Peculiar Galaxies of Arp 273 Image Credit & Copyright: Jason Guenzel Explanation: The spiky stars in the foreground of this backyard telescopic frame are well within our own Milky Way Galaxy. But the two eye-catching galaxies lie far beyond the Milky Way, at a distance of over 300 million light-years. Their distorted appearance is due to grav...
2021年12月18日 Stephan’s Quintet Image Credit: NASA, ESA, Hubble Legacy Archive; Processing & Copyright: Bernard Miller Explanation: The first identified compact galaxy group, Stephan’s Quintet is featured in this eye-catching image constructed with data drawn from the extensive Hubble Legacy Archive. About 300 million light-years away, only fo...
2021年9月2日 M51: The Whirlpool Galaxy Image Credit & Copyright: Josep Drudis Explanation: Find the Big Dipper and follow the handle away from the dipper’s bowl until you get to the last bright star. Then, just slide your telescope a little south and west and you’ll come upon this stunning pair of interacting galaxies, the 51st entry in Charles...