The object lies in the Kuiper Belt and is 500km wide. And astronomers found an atmosphere round it.
While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...
The hunt for Planet Nine continues as new discoveries make the Solar System’s biggest mystery even harder to solve. Is there ...
The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming ...
Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The ...
Unlike rocky planets such as Mars and Earth, angrites do not have a lot of silicon dioxide. Because of this, astronomers have long assumed that angrites always originated in asteroids no larger than ...
Using a new technique that partly relies on artificial intelligence, researchers spotted potentially more than 10,000 new exoplanets.