Proxima Centauri, just 4.24 light-years from Earth, is the closest known star to our Sun. Though it’s the smallest member of ...

Join us on a journey to the Alpha Centauri system,the closest star system to Earth and one of the most promising locations in the search for alien life. Just 4.22 light-years away, this triple-star ...

Proxima Centauri b is the closest known exoplanet to our solar system that is thought to be within the habitable zone of its star.

Astronomers have discovered yet another alien visitor to the Solar System.

Answer 17: A meteoroid is a small rocky or metallic body in space. A meteor is the streak of light produced when a meteoroid enters Earth’s atmosphere. A meteorite is a meteoroid that survives passage ...

NASA’s New Horizons spacecraft has been used to demonstrate simple interstellar navigation by measuring the parallax of just ...

By looking at the shifting of stars in photos from the New Horizons probe, astronomers have calculated its position in the ...

A new study reveals that a common human technology may be quietly broadcasting our presence to alien civilizations—without us even realizing it.

Humans might not know of any intelligent beings beyond Earth, but if they exist, they might already know about us. New ...

Aliens could spot Earth because of airports such as Heathrow and Gatwick, according to new research. Radar systems used by ...

Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a ...

Astronomers have discovered yet another alien visitor to the Solar System. This one appears to be a comet, a ball of dust, ...