The curious minds at What If explore the profound scientific, social, and geopolitical impacts of an extraterrestrial ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

It catches very low frequency radio waves made by lightning, solar storms and charged particles moving through Earth’s ...

Discover this week's must-see night sky events, moon phases, and stunning astrophotos. Sign up for our skywatching newsletter ...

Immigration and Customs Enforcement arrested 10,000 people over a five-day period at the end of June, marking a major push by ...