In a metal like copper, however, the outer electrons swim around freely and are shared by all the atoms. That’s why ...

These 10 misconceptions reveal how much we still get wrong about the neighborhood we call home. Secret Service finds 17 'skimming' devices in tour of San Antonio businesses Trump’s push to rewrite the ...

Astronomers are hustling to use interplanetary spacecraft to study the interstellar comet dubbed 3I/ATLAS while the sun is ...

Harvesting solar energy in orbit and beaming it down to Earth is a decades-old idea. Now, a raft of companies say they could ...