Gravity, inertia, and centripetal force keep our solar system in motion. Explore with a series of kid-friendly gravity and force experiments.

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...

This will almost always result in a net redshift, as it includes the expansion of the universe, and also our solar system’s motion toward or away from the galaxy we are observing (the rotation ...

Moreover, as the planets orbit in the plane of the solar system, they change their direction-of-motion continuously, with Earth returning to its starting point after 365 days.

What we know about the search for ‘Planet Nine’ in our solar system The idea of a massive undiscovered planet has been around since before the discovery of Pluto in the 1930s ...

The long-term stability of the Solar System has been the subject of scientific investigation for centuries.

The star could catapult asteroids into our solar system. Skeeze / Pixabay Researchers have known for a while that a star called Gliese 710 is headed straight for our solar system, but they've now ...