NASA's Voyager 1 spacecraft took the first family portrait of the solar system! Voyager 1 was on its way toward interstellar space after completing its grand tour of the solar system at the time. Carl ...

This may explain the strange properties of the orbits of our solar system's planets, which are not quite perfectly circular, and all lie on slightly different planes. NASA artist’s conception of ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show ...