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

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

NASA launched two 12-inch gold-plated copper disks filled with the sounds of children's laughter, heartbeats, and bird calls.

The Blue Marvel: NASA’s Voyager 2 captured this image of Neptune in the summer of 1989 as it became the first spacecraft to fly by the planet.

Though Voyager 2 was the first spacecraft to fly by Neptune, detect its auroras in infrared, and snap a picture of the majestic ice giant, Webb's image offers direct, visible evidence of Neptune's ...

Voyager 2, the only spacecraft to fly by Neptune (in 1989), found hints of an aurora. But all follow-up observations — even with the Hubble Space Telescope — failed to spy telltale shimmering.

A solar wind event squashed the protective bubble around Uranus just before Voyager 2 flew by the planet in 1986, shifting how astronomers understood the mysterious world.

The Blue Marvel: NASA’s Voyager 2 captured this image of Neptune in the summer of 1989 as it became the first spacecraft to fly by the planet. Neptune's blue color comes from methane in its ...

Our solar system might still bear the scars from an extremely close shave with an alien star. Such an encounter – the closest pass we know of – would have shaken up objects on the outskirts ...

Voyager 2, NASA's longest-running mission, explored Neptune during a historic encounter on Aug. 25, 1989, sending back humanity's first close-ups of the planet.