标签： spiral galaxies

天文·每日一图

碰撞螺旋星系Arp 274

2023年1月23日 The Colliding Spiral Galaxies of Arp 274 Image Credit: NASA, ESA, Hubble; Processing & Copyright: Mehmet Hakan Özsaraç Explanation: Two galaxies are squaring off in Virgo and here are the latest pictures. When two galaxies collide, the stars that compose them usually do not. This is because galaxies are mostly empty space and, however bright,...

天文·每日一图

狮子三重星系

2021年03月20日 The Leo Trio Image Credit & Copyright: Francis Bozon Explanation: This popular group leaps into the early evening sky around the March equinox and the northern hemisphere spring. Famous as the Leo Triplet, the three magnificent galaxies found in the prominent constellation Leo gather here in one astronomical field of view. Crowd pleasers whe...