Recommended: a time-lapse video of minor planets (asteroids) as they are discovered over the past 30 years or so. This new one is updated to mid-2011. Watch it in the highest resolution your PC will allow. Now, here’s the link!: http://www.youtube.com/watch?v=ONUSP23cmAE Turn off the music if you don’t care for it. This video compresses 30 [...]
Highly recommended: a recent presentation given on the Google campus by Prof. Raja GuhaThakurta of UC Santa Cruz. It runs an hour and a quarter, but it’s so packed with interesting ideas, pictures, and simulation videos of galaxy collisions, etc that you don’t notice the time. Give up that Seinfeld rerun and give it a [...]
Continuing Astronomical League programs, I’ve started taking images of Arp’s Peculiar Galaxies, which actually more often than not groups of galaxies acting oddly because of mutual gravitation effects. Here’s number 227 (from Arp’s list of 338; 34-minute monochrome exposure): The halos around the galaxy at left are real–they are thin streams of stars and dust [...]