In about 5 billion years, the Sun will run out of hydrogen at its core. This will make it swell up into a red giant, as it ...

Billions of years from now, the Sun will swell into a red giant, swallowing Mercury, Venus, and Earth. But that’s not the ...

At 5.97 light-years from Earth, it is the fourth-closest star to our solar system, after the three interconnected stars of ...

Astronomers have spotted four smaller-than-Earth exoplanets orbiting the closest single-star system to us ... could force us to reevaluate our understanding of how planets form and evolve.

For instance, Neptune migrated outward, switching places with Uranus, and pushed a lot of the small, icy bodies into the ...

the first interstellar object ever known to visit our solar system. | Credit: M. Kornmesser/European Southern Observatory Alpha Centauri is home to three stars, including the closest star to Earth ...

While the Proxima Centauri system is the closest to our solar system at a distance of 4.25 light-years away, it comprises three stars circling one another, making Barnard’s Star the nearest ...

While the Proxima Centauri system is the closest to our solar system at a distance of 4.25 light-years away, it comprises three stars circling one another, making Barnard’s Star the nearest ...

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 ...