The Phoenix Mars Lander launched Aug. 4, 2007, in a quest to find life on Mars. After a 10-month journey, the lander successfully touched down on the planet's northern polar surface last night. CNN's technology and environment correspondent Miles O'Brien has been at NASA's Jet Propulsion Laboratory since Friday. He joins us live from Pasadena, Calif.

Pictured: The Phoenix Lander's Delta 2 launch vehicle taking off; an artist's rendering of the lander itself, and one of the very first images sent back from the lander this morning after its successful touchdown last night.

For the first time, scientists have witnessed the birth of a supernova. Heidi Hammel with the Space Science Institute tells us more.

On the left: 'Before' images show a previously known supernova, SN 2007uy, in galaxy NGC 2770.

On the right: An X-ray image taken on January 9, 2008, captures a moment of a 5-minute-long burst, indicating the creation of a new supernova, SN 2008D. The exploded star became visible to regular photography a few days later.

Image credit: NASA/Swift Science Team/Stefan Immler

Almost 40,000 acres of the Everglades National Park are on fire.

This summer, British and Canadian researchers plan to test new technology for releasing previously unrecoverable energy trapped in heavy oil deposits. It works by stimulating tiny microbes to chew up the sticky, tar-like heavy oil and metabolize it into natural gas.