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

The video ranks the biggest cosmic threats to humanity, from rogue planets and black holes to supernovas, gamma ray bursts, ...

It’s been almost ten years to the day since this experience, and I still get a little thrill in my chest when I think about ...

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

When a potluck sneaks up, this list helps fill the table with dips, pasta salads, casseroles, sides, and desserts that travel ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

A new time-lapse captures mycorrhiza in motion at a sub-cellular level for the first time. Dr Jennifer McGaley explains how ...

I did not review Supergirl, because it is Den of Geek policy that if you travel for a project at the studio’s request—say, ...

Increasingly, travelers are discovering that learning something new may be the most valuable thing they bring home from ...

In the lab, they’ve displayed astonishing prowess for getting through obstacles, including overcoming strong natural aversions to reach a goal. Yet, they can’t do much of anything on their own. It’s ...

On May 22, 2026, the Pentagon released a second batch of previously classified photos and videos showing what appear to be unexplained flying objects. These file dumps were the culmination of a ...