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, NASAâ€™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.
Voyagerâ€™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!