2021年02月19日 Mars Perseverance Sol 0 Image Credit: NASA, JPL, Mars 2020 Explanation: After a 203 day interplanetary voyage, and seven minutes of terror, Perseverance has landed on Mars. Confirmation of the successful landing at Jezero crater was announced from mission control at NASA’s Jet Propulsion […]
2021年02月18日 Swiss Alps, Martian Sky Image Credit & Copyright: Jens Bydal Explanation: Taken on February 6, this snowy mountain and skyscape was captured near Melchsee-Frutt, central Switzerland, planet Earth. The reddish daylight and blue tinted glow around the afternoon Sun are colors of the M
2021年02月17日 Sun Pillar with Upper Tangent Arc Image Credit & Copyright: Mike Cohea Explanation: This was not a typical sun pillar. Just after sunrise two weeks ago in Providence, Rhode Island, USA, a photographer, looking out his window, was suddenly awestruck. The astonishment was caused by a
2021年02月16日 Perseverance: Seven Minutes to Mars Video Credit: NASA, JPL Explanation: How hard is it to land safely on Mars? So hard that many more attempts have failed than succeeded. The next attempt will be on Thursday. The main problem is that the Martian atmosphere is too thick to ignore —
2021年02月15日 Landing on Mars: Seven Minutes of Terror Video Credit: NASA, JPL Explanation: Starting Thursday, there may be an amazing new robotic explorer on Mars. Or there may be a new pile of junk. It all likely depends on things going correctly in the minutes after the Mars 2020 mission arrives at
2021年02月14日 Long Stem Rosette Nebula Image Credit & Copyright: Adam Block & Tim Puckett Explanation: Would the Rosette Nebula by any other name look as sweet? The bland New General Catalog designation of NGC 2237 doesn’t appear to diminish the appearance of this flowery emission nebu
2021年02月13日 Stereo Eros Image Credit: NEAR Project, JHU APL, NASA Explanation: Get out your red/blue glasses and float next to asteroid 433 Eros. Orbiting the Sun once every 1.8 years, the near-Earth asteroid is named for the Greek god of love. Still, its shape more closely resembles a lumpy potato
2021年02月12日 Spiral Galaxy NGC 1350 Image Credit & Copyright: Mike Selby, Warren Keller Explanation: This gorgeous island universe lies about 85 million light-years distant in the southern constellation Fornax. Inhabited by young blue star clusters, the tightly wound spiral arms of NGC 1350 seem
2021年02月11日 Cygnus Mosaic 2010 – 2020 Image Credit & Copyright: J-P Metsavainio (Astro Anarchy) Explanation: In brush strokes of interstellar dust and glowing gas, this beautiful skyscape is painted across the plane of our Milky Way Galaxy near the northern end of the Great Rift and the c
2021年02月10日 Firing Lasers to Tame the Sky Image Credit & Copyright: Juan Carlos Muñoz / ESO; Text: Juan Carlos Muñoz Explanation: Why do stars twinkle? Our atmosphere is to blame as pockets of slightly off-temperature air, in constant motion, distort the light paths from distant astronomical ob
