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 ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

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

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

Usually, planets of this size outside our solar system are difficult to detect, but scientists used a technique called ...

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

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

NASA has made a new out of this world discovery. NASA's James Webb Space Telescope recently captured evidence of a new planet beyond our solar system.