Long before modern space exploration, scientists proposed astonishing ways to contact extraterrestrials—from giant burning ...

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 ...

Having considered more than 1,000 cases, this analyst of unidentified anomalous phenomena has honed a rational process for ...

Swipe Down and Turn Up the Sound to Hear the Full Experience. Space is often described as silent. With no atmosphere to carry ...

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

A new technique will enable astrophysicists to study the strength of extreme gravity at the black hole’s horizon. Credit: Australian National University On a January morning in 2025, a ripple in the ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...