This planetary nebula (Charles Messier's first) is one of the brightest in the night sky. The elegant aquamarine and red-orange hues reveal an abundance of oxygen laced with hydrogen gas. Four billion years from now, this will be the likely fate of our own sun. By Carl Crum '24
M45. The Pleiades. Subaru. The Seven Sisters. Since antiquity, this open cluster has been admired from China to Australia to Europe. According to Greek mythology, the Pleiades were the seven daughters of Pleione, a sea-nymph, and Atlas, the titan who holds up the sky. Relentlessly pursued by Orion the Hunter, Zeus took pity on the beautiful sisters and immortalized them in the stars, sparing them from Orion (who still chases them in the night sky as a constellation of his own). In reality, the Pleiades star cluster contains thousands of stars, many of which burn blue and hot due to…
If you thought the Andromeda Galaxy and our Milky Way were the only interacting galaxies in the night sky, then think again! Locked in a gravitational duel, Bode’s Galaxy and the Cigar Galaxy will dance around one another for several billion years until they collide and form one massive body. In their most recent skirmish, the Cigar (pictured right) ignited ferocious star formation in Bode’s grand spiral arms, giving them their blue-purple hue. Similarly, the Cigar has been dubbed a “starburst” galaxy because stars are forming 10 times faster in it than in our own galaxy! By Carl Crum '24