View Full Version : Young Asteroids Age Fast with a Solar Wind Tan

2009-Apr-23, 04:20 AM
If you stay out in the Sun too long, you’ll eventually get a suntan (or sunburn); your skin will also get damaged and it will show signs of ageing faster. This might sound like a sunblock ad, but the same principal holds true for the small chunks of rock floating around in the Solar System. [...]

More... (http://www.universetoday.com/2009/04/22/young-asteroids-age-fast-with-a-solar-wind-tan/)

Jeff Root
2009-Apr-23, 09:43 AM
Why red rather than green or blue? What's the chemistry?

Why isn't the Moon red?

-- Jeff, in Minneapolis