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 ...

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.

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 ...

The Sun, the Solar System’s most powerful particle accelerator, can whip up electrons to nearly the speed of light and eject ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, speeding through our celestial neighborhood.

Discover the dramatic forces creating spectacular weather on neighboring planets and moons.

The size of the solar system is defined by the volume of space over which the sun’s influence exceeds those of other nearby stars in the Milky Way galaxy.