ESA's Mars Express orbiter has photographed a long white cloud lingering eerily over the planet's surface.
The ground-breaking space telescope that discovered more than 2,600 exoplanets has finally run out of fuel.
The ambitious new mission will see two satellites placed in to orbit around the closest planet to the Sun.
Four gargantuan planets have been observed orbiting a relatively young star approximately 500 light years away.
Astronomers have found what is thought to be the first confirmed moon in orbit around an extrasolar world.
The important new find also hints at the presence of another, much larger planet in the outer solar system.
The ever-ambitious entrepreneur is aiming to construct a human colony on the Red Planet by as early as 2028.
A mere two months after beginning operations, NASA's TESS spacecraft has found two new extrasolar worlds.
A new study has cast further light on a mystery fossil that scientists say is as 'strange as life on another planet'.
The new planet is located in the same star system as Spock's home world in the 'Star Trek' universe.
Researchers have called into question the reasoning behind Pluto's demotion from planet to dwarf planet.
Scientists have discovered that the Moon may not be the only natural satellite in orbit around our planet.
Scientists have determined that a significant percentage of planets in our galaxy may be covered in water.
The extrasolar planet known as Kelt-9b is so hot that its atmosphere contains vaporized iron and titanium.
The huge object is 12.7 times the mass of Jupiter and has a magnetic field 200 times more powerful.
A large Earth-like world has emerged as the most likely place to look for life outside of our solar system.
NASA's Transiting Exoplanet Survey Satellite (TESS) is now on the hunt for habitable extrasolar worlds.
The third rocket-powered test flight of SpaceShipTwo provided its pilots with a spectacular view of our planet.
Scientists believe that they have identified a body of water situated beneath the planet's south polar ice cap.
The discovery means that the gas giant has a total of 79 moons - more than any other planet in the solar system.