An object up to dozens of times the mass of Jupiter flying through our solar system may have disrupted planetary orbits.

Test your knowledge on our solar system, from the biggest and smallest planets to the behemoth mountain on Mars.

Encountering Neptune in 1989, NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer ...

The solar system, long believed to be a relatively stable and isolated system of planets, moons, and distant bodies, may have ...

Earth's name, unlike other planets named after Greco-Roman deities, originates from Old English "eorþe," meaning soil or ...

Weather permitting, Jupiter will not only be brighter than most other stars and planets in the evening sky, but will also be ...

Over the last ten years, OPAL has observed Uranus' northern hemisphere, which has faced the inner solar system for the ...

Extrasolar gas giant planets are a necessary stop on the road to finding life elsewhere in the cosmos. Here's why we need to ...

The research team's simulations indicate a 1 in 100 chance that an interstellar visitor could produce the orbits we see today ...

Massive object passing through solar system is a better explanation for nature of orbits of Jupiter, Saturn and Neptune ...

Discover the fascinating feature of WASP-69 b, a hot Jupiter exoplanet with a comet-like tail of gas, shedding light on ...

Scientists from the National Institute of Science Education and Research have discovered a triple-star system. This young ...