miercuri, 4 martie 2009

Discover: Ten Things You Don’t Know About the Sun

Quick! What's the brightest star in the sky?
If you said Sirius, then give yourself a blue gold star. But I'm sorry to say: Bzzzzt. You're wrong. Your problem is you know too much astronomy; Sirius is the brightest star in the night sky. The correct answer is, duh, the Sun.
The Sun is a star just like all the others in the sky, more or less, but it just so happens to be substantially closer. Full story:

* Live Science about 2012, Solar Storm and NASA: