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

NASA's Voyager 2 spacecraft made its closest approach to Jupiter. It came within 354,000 miles (570,000 kilometers) of the ...

Before defining what a light-year is, we should define what a light-year is not: It is not a measure of time, but rather a ...

"Eight minutes later, the orbiter started receiving data from the descent probe, which slammed into the top of the Jovian ...

There's a broad consensus in the scientific community that a follow-up mission to Pluto should be an orbiter, and not a ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...

Researchers have looked into how far away the Voyager spacecraft could go while we could still detect them, and worked out ...

Observations from NASA’s Juno spacecraft reveal that Jupiter’s strong magnetic field and the unique properties of its plasma ...