In the vastness of the universe, distances between celestial bodies are mind-boggling, with even light taking thousands of ...

To reach Earth’s closest star system, Alpha Centauri, scientists are building a laser-powered spacecraft. To pull off ...

Alpha Centauri is host to two sun-like stars, and a third star – the red dwarf Proxima Centauri, which is already believed to have one planet in a Goldilocks orbit, discovered in 2016.

Alpha Centauri is about 4.4 light-years (roughly 25 trillion miles, or 40 trillion kilometers) from Earth and is home to three separate stars. The closest star, Proxima Centauri, also hosts an ...

Alpha Centauri is also the very closest system in the galaxy, lying just 4.37 light—years away and providing a uniquely intimate perspective on any possible planets there.

Alpha Centauri B is specifically a K1V-type star that fits the bill with an estimated age of between 4.85 and 8.9 billion years, and is already known to have an Earth-like planet called, ...

Alpha Centauri is 4.37 light-years away — more than 25.6 trillion miles, or more than 276,000 times the distance from the Earth to the sun.

Alpha Centauri is racing toward us at 0.007 light-years per century (80,000 kilometers per hour) and will be closest 28,000 years from now, when it will be 3.2 light-years from Earth.

Alpha Centauri is a mature star system, at 5 billion years old. This means that most of the material in this system’s protoplanetary disk has likely already dissipated, ...