Planet Nine is now being said to be a rogue world that was captured by the Solar System.
Have a sky-watching with your naked eye or binoculars this New Year's Eve; comets have been detected that will zoom past Earth.
Jupiter's Europa is believed to have an underground ocean that could suggest it could support alien or extraterrestrial life.
Scientists expect the star, Gliese 710, to have a really close encounter with the solar system.
A team of scientists discovered a Sun-like star or death star that has eaten its planets. Could this mean the Earth's Sun will eat its planets, too?
Scientists have discovered a planet-eating solar twin located 3,000 lightyears away.
When the Sun dies, what will happen to planet Earth?
Cosmic dust has been found for the first time on the rooftops of three major cities.
Scientists have recently found evidence that backs the theory of a low-mass supernova triggering the formation of the solar system.
What made Pluto disqualify itself as a planet?
Researchers suggest that a low-mass supernova may have triggered the formation of the solar system.