Science & Environment

New study suggests scientists were wrong about dark streaks on Mars

A new study casts doubt on a phenomenon that was previously believed to show water flowing on the surface of...

How to free up space on a PC

Using a PC is all fun and games until you run out of storage. We’ve all been there, and the problem becomes more...

Richard L. Garwin, a designer of the first hydrogen bomb, dies at 97

Richard L. Garwin, a designer of the first hydrogen bomb, died Tuesday, his daughter-in-law, Tabatha Garwin confirmed to CBS News....

NASA’s Don Pettit Shot 220 Days of Amazing Photos From the I.S.S.

Don Pettit, NASA’s oldest active astronaut, returned to Earth on April 20, the day he turned 70 years old. That concluded his fourth trip...

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