Fereshteh Emami says university officials removed her from industrial pollutants study when findings made the news ...

Using a machine learning technique that compares molecular fingerprints left behind by living organisms, researchers have ...

More metal than ever is entering the upper atmosphere because of space traffic, with unknown effects on climate ...

The law that was passed Nov. 12 to fund the federal government amends that regulation by setting a cap on the concentration ...

Scroll down to vote on each matchup, and check back each week to see which photos advance to the next round. All your voting ...