Scientists say the findings of the new study may make future searches for extraterrestrial intelligence faster and more effective.

NASA plans to launch the Habitable Worlds Observatory in the 2040s, a mission whose goal is “to image Earth-like planets around other sun-like stars,” according to NASA’s website.

Barnard’s Star hosts four hostile small planets whose unusual chemistry and orbital rhythm reveal how compact planetary ...

Planets orbiting stars beyond the solar system come in all shapes and sizes but mostly fit into a few categories: large and hot gas giants, super-Earths that are slightly larger than our planet, ...

Sagan's team created the greatest puzzle of all time, which you can only solve if your species understands the basic nature ...

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home planet.

Astronomers have revised the mass of nearby exoplanet GJ 3378 b, recasting it as a rocky super‑Earth in the habitable zone and renewing interest in its potential to host alien life.