Just three decades ago, astronomers had no evidence that planets commonly orbited other stars. Then in 2025, NASA confirmed ...

A polarizing Harvard astronomer has been appointed to lead a White House panel studying UFOs. Avi Loeb is leading a new ...

NASA addresses the release of UFO files and discusses the ongoing search for life on Mars. What are they hiding?

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

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

Researchers propose turning a future NASA moon base into a quarantine station that would screen space samples before they ever reach Earth.

Space exploration was a major theme of a state House hearing on Tuesday, even as the budget deadline looms over lawmakers.

Based on evidence collected by the James Webb Space Telescope, researchers have found that interstellar comet 3I/ATLAS could ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

An interstellar comet that passed through the Solar System last year may be up to 12 billion years old – far older than the ...

The planets are extremely large, with TOI-791 b being about the same size as Jupiter, and TOI-791 c even larger. Yet, they ...

Scientists can't fully agree on what GJ504b actually is. It may be a massive planet or a brown dwarf, a mysterious class of ...