In late 2017, a mysterious object tore through our solar system at breakneck speed. Astronomers scrambled to observe the fast-moving body using the world's most powerful telescopes. It was found to be ...

Pluto isn’t the only dwarf planet in our solar system's outer reaches. Now is an ideal time to look for the egg-shaped Haumea ...

A mere 48 light-years from Earth in the constellation Ophiuchus is an exoplanet that has been defying scientists attempts to understand it.

A new model has been developed to simulate interstellar activity within our solar system and the nearby Alpha Centauri system. Interstellar material has been found within our solar system, but ...

A planetary scientist explains new research explaining the differing compositions between space rocks that hit Earth and are brought back.

Interstellar objects are among the last unexplored classes of solar system objects, holding tantalizing information about primitive materials from exoplanetary star systems. They pass through our ...

Giant planets can take shape in two ways: by slowly building solid cores that attract gas, like our solar system, or by rapidly collapsing from a young star's cooling disk into massive objects.