Since the 1970s, spacecraft have been visiting the solar system's distant planets, returning photos of turbulent atmospheres, colorful rings, and bizarre moons. Here are the best photos of our ...

• NASA Academy of Future Space Explorers (ages 5 – 12) Learn about the planets, their moons and other space phenomena in the solar system. Assemble a model satellite while in training to be an ...

While these planets in our solar system are incredibly cold, there are even chillier places in the universe. The coldest of all is the Boomerang Nebula , a cloud of dust and gas 30 million billion ...

Jupiter moons Callisto and Ganymede are among the biggest in the solar system, and potential grounds for liquid water and alien life. NASA's JUICE mission will probe them for signs of both.

Scientists are looking at a new way moons in the early solar system could have formed – from giant rings surrounding their planet. Even Earth and tiny Pluto could have harbored a ring at one point.