Starship Asterisk*

That's it. The rebels are there.

Explanation: It's one of the baddest sunspot regions in years...As solar maximum nears in the next few years, the increasingly wound and twisted magnetic field of the Sun may create even more furious active regions that chirp even more energetic puffs of solar plasma into our Solar System. Well loo...

This is a rerun BTW. See http://apod.nasa.gov/apod/ap071114.html

Heh, to paraphrase Ngaio Marsh, why is it that the streak of gray we see in the sky is so beautiful when we think it's a cloud and so horrible when we discover it's industrial pollution?

My question might be more appropriate in a forum for quantum physics, but it does pertain to today's APOD in a roundabout way. So, it seems we are moving through the cosmic microwave background radiation at about 600 Kps. I am reminded of a nagging question I have always had about string theory, whi...

I got hung up on the statement "When two galaxies collide, the stars that compose them usually do not." This is somewhat ambiguous. One interpretation, which seems more likely, is that for any specific star in either galaxy, it is unlikely that that star will collide with another. A more l...

Woah Spirit really made a mess there didn't she? But silica has a wide variety of uses in industry, from glass to computer chips. A few more incentives like that, and maybe private industry will beat government to Mars. Can't you just see the bulldozers? Now if we could just find oil...