Skype: a better match with Facebook than Google?

As two Internet powerhouses slug it out to tie the knot with Skype, Facebook looks likely to be a more aggressive suitor than Google , and the world’s largest social network may make for a better fit.

• more »

Bin Laden’s death hit the Internet and keeps on blazing

In some ways Osama bin Laden's death is the perfect Twitter story.

• more »

Airlifted Canadian bison sent to Russia to boost species' survival

Canadian wildlife officials have delivered a shipment of 30 wood bison from a national park in Alberta to a historic buffalo stomping ground in sub-Arctic Russia — part of a unique, intercontinental gift of natural heritage aimed at boosting the species' long-range chances of survival.

• more »

Climate change hardly visible here: Crop study

When your lawn scorches or the geraniums croak, it may be premature to blame global warming. One of the world's top science journals says climate hasn't changed in most of North America - yet.

• more »

NASA marks 50th anniversary of manned US space flight

The United States space program was down and out when Alan Shepard climbed inside a one-man capsule on May 5, 1961, for a 15-minute ride.

• more »

• Astronaut has $15 billion plan to mine the moon
• NASA’s Dawn probe closes in on giant asteroid
• Shuttle launch delayed until May 10
• Russia celebrates Gagarin’s conquest of space