A ninth planet may exist beyond Neptune in the Kuiper Belt, a region populated by icy bodies that orbit the Sun.

Our solar system consists of the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, as well as countless asteroids and comets, that are gravitationally bound to the Sun.

We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...

Astronomers are investigating the possibility of a hidden ninth planet beyond Neptune, which could explain unusual orbital patterns in the Kuiper Belt.

The solar system has nine planets, but in 2006 the International Astronomical Union declared Pluto a dwarf planet, making the ...

Astronomers think that a dwarf planet hiding in the middle of our solar system could be a source ... The study was published in the journal Nature Astronomy.

Hot spots and tunnels to neighboring "superbubbles" seem to have been created by supernovas and infant star outbursts.

NASA Solar System Ambassador Ellie White is conducting two astronomy events at the Huntington Museum of Art (HMA) this month.

but the pieces that make it to the surface of our planet are called meteorites. Since some of those space rocks date back to the very early days of our solar system—and have remained unchanged ...

Using data from the eROSITA All-Sky Survey, astronomers have created a 3D map of the low-density bubble of X-ray-emitting, million-degree hot gas that surrounds the solar system. The investigation ...

The force of gravity acting over eons has provided the solar system ... constituents (planets, planetary satellites, asteroids, comets etc). The book represents a "bridge" from the classical celestial ...