Artist's impression of Planet Nine – a suspected “wide-orbit” planet – with the Sun in the distance; Neptune's orbit is shown ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

They were also not the first missions to carry a message intended for extraterrestrial beings should they reach interstellar ...

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

The outer reaches of our Solar System continue to reveal a complex dynamical environment where the interplay of gravitational forces shapes the orbits of a myriad of distant bodies. Research in ...

New research says that Earth could be ejected from our solar system if a passing star was to come close enough.

The exoplanet, a planet beyond our solar system, has been dubbed TWA 7b after NASA's James Webb Space Telescope captured evidence of it.

Astronomers discovered that C/2014 UN271, a massive comet more than 10 times larger than any known comet, is emitting jets of ...

Among the planets, moons are more common in the outer reaches of the solar system. Mercury and Venus are moon-free, Mars has two small moons, and Earth has just one.

Twenty-eight youngsters experienced a full day of learning about the solar system, outer space, the planets, stars and ...

Space artists can sometimes stretch scientific data for a bigger visual bang. At New York's natural history museum, they ...

They also installed three new variometers to measure magnetic field changes at locations across the country. The work was part of the United Kingdom’s Space Weather Instrumentation, Measurement, ...