A Catholic nun is sounding the alarm over the growing fascination with aliens, warning that alleged encounters could have ...

A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.

(RNS) — Rep. Tim Burchett of Tennessee told RNS that he sees evidence of UFOs in the Bible.

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

American Religious Belief in Extraterrestrial Life (Princeton Univ., Sept.) argues that several American religious traditions have long believed in that aliens exist—and want to help us.

One day, probably far off in the very distant future, if astronomers are correct in their assumptions about the vastness of space, Earth will be visited by intelligent beings from another planet.

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

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

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