A group of astronomers have discovered an exoplanet orbiting the closest single star to Earth’s Sun. The earth-like planet has at least half the mass of Venus, and a year lasts only a little over ...

The hunt is on for a second Earth, somewhere out there in the Milky Way galaxy, but a newly discovered world is not quite the thing. It comes in at around 1.9 times ...

Now years later, scientists say that might be because the asteroid could actually be a giant chunk of the moon.

The object, the latest “quasi-moon” detected by astronomers, could be with us for almost another 60 years. By Robin George Andrews The Earth stands alone in the solar system as a habitable world, as ...

Unlike giant stars that explode into a supernova and collapse into a black hole, a medium star like Earth's sun just keeps on trucking until it runs out of nuclear fuel, suffering a more prolonged ...

Astronomers have directly observed a free-floating planet, comparable in mass to Earth, roaming the Milky Way. Discovered via ...

WASHINGTON, Sept 26 (Reuters) - The first rocky planet ever spotted orbiting a burned out star called a white dwarf offers a glimpse of what may be in store for Earth billions of years from now - ...

The Earth of today is a lush garden that supports countless living organisms, but give it a few billion years, and Earth will be swallowed up by the Sun. Or maybe not. Astronomers have discovered an ...