Astronomers have discovered an exoplanet about half the size of Venus orbiting Barnard’s star, the closest single star to our ...

The world—which orbits Barnard's Star, just six light-years from us—has a year that lasts barely three Earth days.

The heat and light that it gives off helps to keep everything on our planet alive ... own light like a star. The Moon appears bright because it reflects light from the Sun. Like the Earth ...

Beyond our solar system, countless alien worlds of lava, ice, water and noxious gas swirl through the cosmos. Here are some ...

This rocky planet, discovered with the European Southern Observatory's Very Large Telescope in Chile, is smaller than Earth, ...

With the help of a three-dimensional map of stars near the sun, astronomers can search for alien planets that might hold life ...

Jupiter is the biggest planet in our solar system, according to NASA. Jupiter’s radius is over 11 times the equatorial radius ...

On Monday night (Oct. 7), Venus will be in the constellation Libra, the Scales. But by next month – on Nov. 4 – it will have appeared to have moved about 38-degrees to the east where it will then ...

Since January, the closest planet to Earth has ... object in the sky—after the Sun and the Moon. However, its dazzling performance as the bright “Evening Star” begins to unravel this month.

The terminator sweeps across the Moon, Comet Tsuchinshan-ATLAS continues to wow, and Jupiter reaches a stationary point in ...

Using the European Southern Observatory's Very Large Telescope (ESO's VLT), astronomers have discovered an exoplanet orbiting ...