Astronomers posed over the past decade that dark comets, or objects that resemble asteroids but move like comets, may exist.

When 'Oumuamua traversed our solar system in 2017 it was the first confirmed Interstellar Object (ISO) to do so. Then in 2019 ...

Comets, often described as the solar system's "dirty snowballs," are icy bodies made of rock, dust and ices. These relics of ...

Researchers have doubled the number of known dark comets, identifying two distinct types: larger ones in the outer solar ...

Massive object passing through solar system is a better explanation for nature of orbits of Jupiter, Saturn and Neptune ...

If Brown’s hidden world is real, Rubin will almost certainly find it or strong indirect evidence that it exists. “In the ...

The Sun is an incandescent but benevolent dictator. For billions of years, it's kept our Solar System well organized and ...

The evolution of the orbits of the planets is a complex process. Initially the planets formed out of a rotating disk of gas ...

Test your knowledge on our solar system, from the biggest and smallest planets to the behemoth mountain on Mars.

NASA is investigating "dark comets," mysterious celestial bodies lacking the bright tails typical of comets. With ...