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

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 ...

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

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 ...

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 ...

Hence, these bodies do not orbit a star. The planets in our solar system are gravitationally bound to the sun. But rogue planets move through interstellar space as they wish. Their size can vary ...

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 ...

The Moon, Williams and Zugger say, has an orbit around Earth that isn't as neatly aligned with the equator as you might ...

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