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 ...

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

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

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 ...

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

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 ...

John Casani, who has died aged 92, was an American spaceflight engineer who led the teams that pioneered Nasa’s explorations ...

A team of international researchers led by Tomas Stolker in the Netherlands has imaged a young gas giant exoplanet near a 12-million-year-old star. The planet is orbiting a star whose planet formation ...