Scientists say studying objects like Ammonite, despite their immense distance, offers valuable insight into the solar ...

A rare discovery beyond Neptune is forcing scientists to rethink early solar system dynamics and the forces that shaped ...

In the bigger picture, “down” could be defined as being below the plane of the solar system, which is known as the ecliptic.

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...

Astronomers at Princeton University have uncovered evidence that the outer solar system is more structured than long believed. Led by astrophysics doctoral student Amir Siraj, the research points to a ...

The most unsettling space images are not of black holes or distant galaxies, but of stars that look eerily like our own Sun in its final moments. Astronomers can now map, almost step by step, how our ...