NASA has announced the discovery of seven new planets including three within their star's habitable zone.
The space agency is due to announce its latest findings at a press conference on Wednesday morning.
The move, if successful, could mean that our own solar system actually has more than 100 planets in it.
The significant haul of new worlds includes a potentially habitable 'super-Earth' with a rocky surface.
Do intelligent extraterrestrials see our planet in the same way as we might see a nature reserve ?
Astronomers believe that a planet 14 light years away may be a promising place to look for alien life.
The Very Large Telescope (VLT) in Chile will soon be seeking out habitable worlds around Alpha Centauri.
Curiosity has discovered minerals from over several million years of the Red Planet's geological history.
An organization in San Francisco is planning to send messages out to potentially habitable planets.
Scientists have discovered a flow of liquid iron in the planet's core 3000km beneath the surface.
Two new studies have revealed that the dwarf planet Ceres is home to significant quantities of water ice.
A prominent NASA scientist has outlined just how vulnerable our planet is to threats from outer space.
Astronomers have observed strong winds and changing cloud cover on an alien planet for the first time.
Extrasolar planets may not be the only place where it is possible to find signs of extraterrestrial life.
The Trace Gas Orbiter (TGO) has returned a set of high-quality test photographs from the Red Planet.
It is looking increasingly likely that the dwarf planet is home to a vast subterranean ocean of water.
Being high up above the planet didn't stop astronaut Shane Kimbrough from casting his vote last week.
Scientists have spotted X-rays trickling from the dwarf planet despite there being no obvious source.
If an astronaut dies in space, could their body eventually go on to spread microbes to other planets ?
A large planet lurking in the outer solar system could be causing the sun's rotational axis to tilt.