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, the closest star system to Earth, is moving toward us at 79,000 kilometers per hour (49,709 mph). It won’t reach its nearest point for another 27,700 years, but some of its ...

Alpha Centauri is also moving towards us, and in some 28,000 years from now, it'll reach its closest point at a distance of a little over three light years away, raising the odds of an ...

The closest stellar system to us is the triple system Alpha Centauri. It’s currently creeping closer to our Solar System at 79,000 km per hour (about 49,709 mph), and should be at its closest ...

Alpha Centauri, the nearest star system to the sun, is probably shedding comets and asteroids into our solar system — and even producing a few meteors in our sky. Located just 4.3 light-years ...

In an attempt to leapfrog the planets and vault into the interstellar age, a bevy of scientists and other luminaries from Silicon Valley and beyond, led by Yuri Milner, a Russian philanthropist ...

The newly discovered planet, Alpha Centauri Bb, is just slightly larger than Earth, and orbits Alpha Centauri B every 3.24 days. That puts it very close in to the star, so it will be extremely hot.

The Alpha Centauri star system is approaching the sun. Two researchers have determined how many objects from there have already reached us and could reach us. At the edge of the solar system ...

Spacecraft flying by the Alpha Centauri star system could see whether the planet circling Proxima Centauri has signs of extraterrestrial life. (Image credit: Courtesy of Space Initiatives Inc.) ...

But could humans or spacecraft ever reach Alpha Centauri, the closest star system to our planet? Alpha Centauri is about 4.4 light-years (roughly 25 trillion miles, or 40 trillion kilometers) from ...