Only the three-star Alpha Centauri star system, which is 4.1 light-years distant, is closer. In 2016, astronomers found a planet orbiting the nearest star to Earth in this system, called Proxima ...

Astronomers have discovered a planet orbiting the closest solo star to the solar system, known as Barnard's star. The newly ...

Planet-forming disks are rapidly disintegrated when blasted with high-energy radiation from massive young stars.

“This increase in activity provides an exciting opportunity to learn about our closest star − but also causes real effects at Earth and throughout our solar system.” This peak of activity is ...

But they do estimate the Oort Cloud spans up to 10 trillion miles from the Sun, which is almost halfway to Proxima Centauri, the next closest star. The long-period comets spend most of their time ...