The Sun is an incandescent but benevolent dictator. For billions of years, it's kept our Solar System well organized and ...

The evolution of the orbits of the planets is a complex process. Initially the planets formed out of a rotating disk of gas ...

Astronomers posed over the past decade that dark comets, or objects that resemble asteroids but move like comets, may exist.

For billions of years, it's kept our star system well organized through the influence of its powerful gravity. All the planets ... between the Sun and the Earth — of the solar system's center ...

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

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

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

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

It's possible for our solar system to capture a rogue planet and give it a home as it hurtles through the galaxy, according ...

Delving into the behaviors of the Sun and protecting humans at home and beyond are top priorities, according to the National ...

Earth isn't alone in orbiting our sun; it's joined by a bunch of planets, moons, asteroids, and comets that we collectively call our solar system. But how much do you know about our home among the ...

For two decades now, the iconic twin Voyager spacecraft have been quietly overturning everything we thought we knew about the boundary between our solar system and interstellar space ...