Hollywood makes initiating alien contact seem much easier than it has proven to be. In E.T. the Extraterrestrial, E.T. got ...

The scientist has outlined the 'potentially devastating and irreversible long-term impacts' of unknown organisms in space ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Astronomers have revised the mass of nearby exoplanet GJ 3378 b, recasting it as a rocky super‑Earth in the habitable zone ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

A new policy paper proposes a lunar biocontainment facility for extraterrestrial samples. This secure lunar laboratory would ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow the search for potentially habitable planets beyond Earth.

An international team of scientists has measured the extraordinary amount of space dust that reaches Earth’s surface every ...