Between February 25 and February 28, all seven planets in our solar system will be visible in the night sky. (Credit: WSET) You'll need a telescope for some of them, but you should be able to find ...

The Solar System is home to a remarkable range of planets, from tiny rocky worlds to massive gas giants. But just how big are ...

For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare great planetary alignment. Here's how to make sure you don't miss this ...

This phenomenon known as a "planet parade," will feature Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune all present at the same time along a line in the night sky on Friday, NASA says.

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, researchers say.

From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order of the planets isn’t just trivia—it tells a story about temperature, ...

This article was originally featured on The Conversation. Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an ...