The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

In 1877, an Italian astronomer mapped faint lines on Mars and called them canali, meaning channels or grooves. But the word ...

Researchers have looked at how particular microbes from Earth would fare in conditions like those of Mars, the moon, and the ...

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

Well, as a matter of fact, I have often had close encounters with aliens, only I never bothered to mention it here. For this ...

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

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet K2-18b, most experts do not yet think alien life has probably been found.

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 what may be the strongest evidence yet of ancient life on Mars. Inside a ...

It may seem like we are on the verge of discovering alien life. In 2025, a press release stated that we have the “strongest hints yet” of extraterrestrial life on the exoplanet K2-18b. And when ...

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