First Earth-Size Planets Found in Space
Scientists using NASA's Kepler space telescope say they have found two planets orbiting a distant star -- and say the planets are the first ever that are the size of Earth or smaller. That could be critical in the search for extraterrestrial life.

Watch: CES in 60 Seconds: M-Edge Super Shell
Bill Weir puts protective iPad case to the test.

Cisco seen reporting solid second quarter (Reuters)
Reuters - A year after network equipment maker Cisco Systems Inc unnerved investors with yet another weak quarterly outlook the company looks set to report a stable quarter buoyed in part by improving enterprise demand in the United States.

Watch: Mysteries of the Northern Lights
David Muir gives a little insight into what creates those amazing auroras.

Photos: One Last Look Inside Space Shuttle
American space flight over 50 years, from the selection of the first NASA astronauts to the final flight of the space shuttle.

First Meteor Shower of 2012 Dazzles
The Quadrantid meteor shower, the first major show of shooting stars in 2012, peaks in the hours before dawn on Wednesday. The best seeing should be after the moon sets around 3 a.m. Astronomers say you may see 60-200 shooting stars per hour if the weather is clear.