Explore a few of our favorite facts about this oddball planet in the outer solar system.
What did we learn from Voyager 1? Read about the mysterious processes of Saturn and some of the secrets of its moons.
A scientist has created the best-ever global color map of Neptune's big moon Triton, using images taken by a NASA spacecraft 25 years ago.
A strange ribbon of energy and particles at the edge of the solar system first spotted by a NASA spacecraft appears to serve as a sort of 'roadmap in the sky' for the interstellar magnetic field
After a 35-year journey, NASA’s Voyager 1 spacecraft left the solar system to become the first human-made object to reach interstellar space.
Take a look back at some of Voyager 2's most beautiful images on its 36th launch anniversary.
Voyager’s prolonged journey into interstellar space took another dramatic turn when the intrepid space probe last summer passed into a bizarre and unanticipated cosmic hallway.
Voyager 1, the spacecraft that launched on a tour of the solar in 1977, is getting ready to enter interplanetary space -- what a journey it's had!