This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity ...

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

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

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

Scientists in a recent breakthrough have discovered vast hidden magma systems beneath the surface of Mars, marking an “unexpected discovery” leading the researchers closer to finding ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Books like Children of Time and Flowers for Algernon do an incredible job holding the audience's interest throughout their ...

There are "vast hidden magma systems" inside of Mars, scientists say – and it could have major implications for the search ...