The discovery of a distant solar system with its planets in a seemingly impossible order has been revealed this week.
Dark matter accumulating in the cores of particular large planets could help us to finally confirm its existence.
A passing star could disrupt the orbits of the planets and cause the Earth to be flung off into deep space.
The previously unseen world is believed to orbit far out at a range of 838 times Earth's distance from the Sun.
A type of rare, though extremely energetic and deadly cosmic event is able to wipe out whole planets.
Scientists have come up with a way to find planets capable of supporting dinosaur-like extraterrestrial creatures.
Jupiter is pretty big, but there are other, much larger planets to be found lurking in the depths of the cosmos.
A new study has suggested that extraterrestrials could hitch a ride across the cosmos on rogue extrasolar worlds.
A theoretical new type of telescope could make it possible to obtain close-up views of extrasolar worlds.
Over the last 30 years, scientists have succeeded in identifying a staggering 5,000 planets in distant solar systems.
Evidence of a planet has been found in a distant galaxy 28 million light years away.
A new NASA study has revealed just how many potentially habitable worlds there are in our galaxy.
Other stars may be able to host more than our own solar system's solitary habitable world, a new study suggests.
Planets with two suns like Luke Skywalker's homeworld may be as common as planets orbiting a solitary star.
Scientists have announced the discovery of 139 new objects situated in the far reaches of our solar system.
It turns out that planets could orbit a black hole in much the same way as our own planet orbits the Sun.
Astrophysicists have discovered a way to detect the surviving cores of planets orbiting white dwarf stars.
The new worlds are so much like our own that both are now on a list of the 19 planets most likely to support life.
According to a new study, many planets in the so-called habitable zone can only support single-celled organisms.
Scientists have determined that planets orbiting red dwarf stars may be capable of supporting primitive life.