保护地球，探索宇宙，发现文明
2019 December 1 Starburst Galaxy M94 from Hubble Image Credit & Copyright: ESA/Hubble & NASA Explanation: Why does this galaxy have a ring of bright blue stars? Beautiful island universe Messier 94 lies a mere 15 million light-years distant in the northern constellation of the Hunting Dogs (Canes Venatici). A popular target for Earth-based astronom...
2019 July 23 M82: Galaxy with a Supergalactic Wind Image Credit: NASA, ESA, Hubble; Processing & Copyright: Daniel Nobre Explanation: Why is the Cigar Galaxy billowing red smoke? M82, as this starburst galaxy is also known, was stirred up by a recent pass near large spiral galaxy M81. This doesn’t fully explain the source of the red-glowing outward...