The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

CAPE CANAVERAL, Fla. — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system.

There may be another world lurking between the orbital lines of our solar system. Astronomers in Japan have published their theory of an “Earth-like planet,” dubbed Planet Nine, that’s hiding in plain ...

IMAP mission will explore our solar system's protective heliosphere and will also help us develop a better understanding of ...

Astronomers believe they have discovered a fast-moving comet that Saturn sent careening out of our solar system at a speed far eclipsing humanity's fastest fighter jets. Though the planetary encounter ...