Need a new idea to keep kids entertained? Try stargazing. Free learning activities and videos about the solar system Free learning activities and videos about the solar system Free learning ...

Test your knowledge on our solar system, from the biggest and smallest planets to the behemoth mountain on Mars.

which they incorporated into the map to build a 3D interactive model of the solar system's cosmic neighborhood. This included another previously known interstellar medium tunnel called the Canis ...

There's something big missing from our solar system — and that may be a good thing. Planetary scientists recently simulated an alternate version of our solar system: one with a super-Earth ...

On April 8, a total solar eclipse is set to traverse the skies ... mark your calendars and select your location from the interactive map below. Discover when the eclipse will begin and end in ...