Scientists find more proof that sex is good.  Worms that mate rather than reproduce asexually mix genes, which allows them to adapt quicker to environmental changes.

A major study conducted on twins shows that environmental factors may be at least as important as genes in causing autism.

Astronomers spy one of the brightest and longest gamma-ray bursts ever seen, caused by a black hole swallowing a star.

The six crew members of the International Space Station prepared to abandon ship when NASA spotted a piece of space junk hurtling toward them at 29,000 miles per hour. 

Because of their “always on” technology, set-top DVRs consume $3 billion of electricity a year—enough juice to power the entire state of Maryland. Cable companies have resisted building in a “sleep” mode, citing costs.