When the green laser encounters atoms along its path through the crystal, it gives the electrons in those atoms a bit of extra energy. In their high-energy state, those electrons can absorb blue light ...

The researchers believe the technique will enable them to study some of the universe’s fundamental symmetries. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Scientists have found a competitor to the lightning rod — one of the most tried and true methods of controlling where lightning strikes. The new method is far more expensive, but it allowed scientists ...

Physicists have built a tractor beam out of lasers that can both repel and attract objects across distances 100 times farther than previously possible. Michelle Starr is CNET's science editor, and she ...