Watch: Failed Russian Mars Probe Re-Enters
Analytical Graphics animation of Phobos-Grunt spacecraft falling from orbit.

SOPA and the Online Tsunami
The unprecedented online revolt against PIPA and SOPA, congressional bills targeting online copyright and trademark infringement, has many Washington insiders scratching their collective heads.

Watch: Kilauea Volcano Erupts Again
Volcano in Hawaii is most active in the U.S.

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: SOPA Backlash Causes Web Blackouts
Google and other sites protest anti-piracy laws with new look.

Steve Jobs Spoofed in Tablet Ad
Ad widely criticized on YouTube as tasteless; Apple has no comment.