The Solar System is a fascinating place, with each planet orbiting the Sun at its own unique distance. But how far apart are these planets, and how do they travel through space? Uncover the true ...

NASA artist’s conception of a brown dwarf (main) and stock image of the planets in the solar system (inset). An object between 2 and 50 times the mass of Jupiter may have flown through our ...

A primordial black hole in the solar system (illustrated) could make its presence known by altering the orbits of planets. Benjamin V. Lehmann, with use of SpaceEngine@Cosmographic Software LLC ...

Their orbits tend to be less than 10 days long; by comparison, Mercury in our own solar system circles the sun every 88 days.

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to ...

All solar systems, including our own, are thought to have started out like this one, according to the scientists. But it’s estimated that only 1 in 100 systems have retained that synchrony, and ...