The remarkable and completely unexpected find has called into doubt what we know of atmospheric retention.
It's easy to take it for granted that our own solar system, with one star, is the norm - but it turns out that this may not be the case.
The shortlist was picked out of more than 6,000 candidates based on a range of factors pertaining to habitability.
This distant world, known as L98-59d, offers a literal interpretation of the phrase 'the floor is lava'.
The discovery of a distant solar system with its planets in a seemingly impossible order has been revealed this week.
The development of a whole new type of rocket engine could help to open up the solar system for exploration.
Another potentially habitable world has been discovered thanks to data collected by the Kepler Space Telescope.
Astronomers have detected an enigmatic free floating planet approximately 10,000 light-years from Earth.
The mysterious extrasolar world was spotted with the help of NASA's James Webb Space Telescope.
The discovery centers on a particular section of the Kuiper Belt that appears to be denser than the areas around it.
Situated just 18.2 light-years away, this newfound extrasolar world is in orbit around a red dwarf star.
Researchers in Ohio have developed a new propulsion system that could make traveling to Mars much quicker.
The space rock, he argues, is extremely unlikely to have arrived in our solar system through nothing but chance.
Astronomers have identified what is thought to be the third ever example of an object from a distant solar system.
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.
Tantalizing new evidence of this mysterious world has been found courtesy of two deep infrared surveys.
The document pertains to a secretive remote-viewing experiment designed to gain intelligence on military targets.
Millions of years ago, our solar system stood in the path of a veritable tsunami of gas and dust.
Scientists now believe that our solar system may have once been visited by something very large indeed.