Kligat writes: Radio astronomers have discovered that the asteroid 2001 SN63 is actually a trio, with the main body being 2 km in diameter. The two fragments orbiting it are 1km and 400m in diameter. When sunlight hits a near-Earth asteroid that isn't a perfect sphere, it increases its spin, and if it rotates too fast, it breaks apart and sometimes forms natural satellites that orbit the main body.
Attend or create a Slashdot 20th anniversary party! DEAL: For $25 - Add A Second Phone Number To Your Smartphone for life! Use promo code SLASHDOT25. Check out the new SourceForge HTML5 Internet speed test. ×