When the Sun becomes a red giant, will the outer planets and moons become more temperate and conducive to Earth-like life? Terrence A. Murray Cincinnati, Ohio When the Sun runs out of hydrogen fuel ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

Encountering Neptune in 1989, NASA's Voyager mission completed humankind's first close-up exploration of the four giant outer planets of our solar system. Collectively, since their launch in 1977 ...

Blame the giant outer planets. News. By Paul Sutter published 27 March 2023 Mercury's weirdness appears to be the fault of the giant planets like Jupiter, Saturn, Uranus and Neptune.

In searching for the elusive Planet Nine, researchers instead turned up a different resident in our cosmic backyard.

Of the outer planets, Pluto is the slowest-moving, staying in one sign from 12 to 31 years due to its elliptical orbit. This makes this planet a symbol of transformation and power dynamics ...

A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets, a new study suggests.

Killer Spacemen from Outer Planet X. Special | 16m 40s Video has Closed Captions | CC. Three space explorers search for fuel when they encounter Killer Spacemen from Outer Planet X!

A NASA Hubble Space Telescope observation program called OPAL (Outer Planet Atmospheres Legacy) obtains long-term baseline observations of Jupiter, Saturn, Uranus, and Neptune in order to ...