Our Solar System is home to eight extraordinary planets, each with its own unique features, mysteries, and beauty. This cosmic journey takes you from the Sun-scorched surface of Mercury to the icy ...

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...

The solar wind pushes some of the gas and dust away from the comet, forming those beautiful tails we see. A comet actually ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

The exoplanet, a planet beyond our solar system, has been dubbed TWA 7b after NASA's James Webb Space Telescope captured ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Astronomers are meticulously tracking the new interstellar visitor that is crossing our solar system. Officially designated ...