Voyager 1 was launched in 1977, and after 49 years of travelling, it will reach a milestone in space that was once thought ...

Scientists have found that Uranus emits its own internal heat, contradicting data from NASA's Voyager 2 probe nearly four decades ago.

Though our solar system and the movement of its planets appear relatively sedate, there are many things that could upset the ...

After its voyage past Mars, Mariner 4 maintained intermittent communication with JPL and returned data about the interplanetary environment for two more years. But by the end of 1967, the spacecraft ...