The budding astronomer looks at clouds: “I see a duck!” The amateur astronomer looks at stars: “I see a belt and a sword!” The professional astronomer looks at nebulae:
The Cosmos
Astronomers irritate the hell out of me, NASA’s in particular, not the people but their press releases: never met a superlative they didn’t like, Biggest Black Hole, Farthest Quasar, Youngest Galaxy, and on and on, far into the night. The black hole’s size isn’t interesting unless it says something about how galaxies form. The quasar’s […]
The first I knew of it was about 11:00 Monday night. The Capital Weather Gang, a brilliant blog that was snapped up by the Washington Post a few years ago, posted on Facebook: “Have seen some reports of a fireball (large meteor) in DC area around 8:25 pm. Anyone see it?” Comments came in. A […]
A couple of months ago astronomers reported the discovery of an unusual six-component “gravitational lens”—six images of the same object coming at us from slightly different positions in the sky. As light traveling across the universe passes a large mass, the gravity from the mass will serve as a kind of lens, bending the rays. […]
Time again to reach into the “Ask Mr. Cosmology” mailbag and see what readers want to know about . . . The Wonders of the Universe! Q: Why does the full moon look larger near the horizon than when it’s higher in the sky? Mr. Cosmology: Because it is. Q: What is the correct pronunciation of supernovae? Mr. Cosmology: Supernovae. […]
I do seem to keep referring to Freeman Dyson, even writing whole posts about him. The reason, I think, is that I want to write a profile of him, even though 1) profiles of him have been done and done and done, the most recent being a full-blown biography; and 2) he’s way above my […]
The sidewalk astronomer – usually a star-haunted amateur setting up a personal telescope on city sidewalks for both money and love – is familiar with doubt. Mr. Tregent, 1856: “Sometimes when I have been exhibiting, the parties have said it was all nonsense and a deception, for the star was painted on the glass. If […]
Yesterday I related the official version of how photons from the star Arcturus triggered an electrical signal that lit up the 1933 World’s Fair in Chicago. My research into that event, however, has sent me deep into the weeds. Most historical accounts claim that four observatories — Yerkes, Harvard College, Allegheny, and the University of […]