Scientists may have just taken one of the biggest steps yet in the search for life beyond Earth. Meet K2 18 b, a distant ...

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

This eBay listing for never produced, alleged "Planet of the Apes" action figures is a puzzling mystery for toy collectors.

As for those salt clouds, the salt is not table salt or even Pink Himalayan Rock Salt, though that would go splendidly with ...

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

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.

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

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

And if aliens made of different stuff potentially possess consciousness, then why not minds made of silicon, metal, and ...

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

The International Academy of Astronautics has updated its protocols for confirming and announcing the discovery of alien life. New guidelines address the modern challenges of social media, ...