The universe beyond our Solar System is vast and filled with mysteries, and some of its most fascinating secrets lie just beyond our cosmic doorstep. While the Sun is the closest star to Earth, it's ...

Barnard's Star, also known as GJ 699, is of intense interest to planetary astronomers. The only stars closer to Earth are the Centauri trinary system. Barnard's star isn't just a lone star, like the ...

Orbiting its star in just 3.15 Earth days, it lies far too close to support liquid water on its surface. The planet’s temperature is estimated at 125 °C, making it inhospitable by Earth standards.

If this interpretation is correct, the object is 250 to 1,000 light-years away. This would make Calvera one of the closest known neutron stars — possibly the closest.

Astronomers have discovered a low-mass "sub-Earth" planet orbiting the closest solo star to the solar system, Barnard's star, that has a year lasting just three Earth days.

NASA's ISS-mounted X-ray telescope NICER has weighed and measured the closest pulsar to Earth. The neutron star PSR J0437 spins 174 times a second and has a mass of 1.4 suns.

Notably, Bernard b has a mass less than half of Venus, and with its distance of six light years away from Earth, Bernard's star is the second closest stellar system following Alpha Centauri's ...

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 ...

There's even a small, Earth-like planet right next door orbiting Proxima Centauri. We can say that with confidence now that a team from the University of Geneva has confirmed and refined the ...

A new image shows Westerlund 1, the largest and closest super star cluster to Earth, in stunning detail. When you purchase through links on our site, we may earn an affiliate commission.

These are young hot stars compared to our 4.6 billion-year-old sun. They’re maybe 140 million years old, but at 26,000 degrees F (15,000 degrees C) they are three times hotter than the sun ...

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 ...