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SpaceX rocket launch 4-18

SpaceX rocket blasts into orbit

The Falcon 9 SpaceX rocket lifts off from Cape Canaveral, Fla., en route to the International Space Station.

Computer keyboard identity theft

How hackers protect themselves

Self-described "ethical hackers" give tips on protecting your information online.

Cancer goggles

Doctors unveil cancer-seeing goggles

Doctors at Washington University have a new tool to fight cancer -- cancer-seeing goggles.

Lunar eclipse view

Sky watchers catch glimpse of lunar eclipse

In Los Angeles, thousands went to the Griffith Observatory to watch a lunar eclipse early Tuesday morning, which featured a rare "blood moon."

Ping box

What does a ping sound like?

Remember the days when we pretended to listen to the sea in a seashell?

Building turned into Tetris game

On camera: Giant 'Tetris' game played on building

The world's largest game of "Tetris" was played on the side of a Philadelphia skyscraper in honor of the game's 30th anniversary.