The formation of Mercury remains an unsolved mystery. The planet closest to the sun has a disproportionately large metallic ...

That much was just proven when a pair of Tesla influencers attempted to complete a coast-to-coast trip in a Model Y with the ...

Spotting a concussion can be tricky. After a potential head injury, you can ask if the person feels dizzy or has a headache—but that relies on self-reporting, which isn't always accurate.

In about four billion years from now, the Milky Way and Andromeda galaxies will crash together Visualization: NASA, ESA, and F. Summers, STScI Simulation credit: NASA, ESA, G. Besla, Columbia ...