Many of us learned about the order of the planets in our Solar System through some mnemonic device. We were also taught to think that the Solar System is a fixed thing, but our grade school ...

The Oort Cloud, an expanse of icy bodies in the far reaches of our solar system, is shown here in a scene from "Encounters in the Milky Way," a show at New York City's Hayden Planetarium that spawned ...

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...

You might think of our solar system as fixed and unchanging. But that doesn't take into account the constant discoveries scientists are making in our cosmic neighborhood. WUWM astronomy contributor ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...

Be sure to catch it before it bids farewell to our solar system for good.

The Santa Monica College Planetarium will present live-hosted shows on Friday evenings and Sunday afternoons in January and February featuring tours of the solar system and explorations of black holes ...

Observing the birth of a planetary system in real time is an extraordinary spectacle, offered for the first time by a team of ...

The universe is at it again; scientists have been baffled by a discovery that turns all the knowledge they have on planetary ...