New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...

There are no two ways about it—space will kill you if you give it half a chance. More than land, sea, or air, the space ...

The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

A pipe dream or a scam to enrich himself further? Here's why scientists are skeptical of Elon Musk's dream for humans to ...