Welcome to the new Sun competition! This time, the winner will be the heaviest planet! SolarBalls offers space animation ...

Moons and other matter. More than 150 moons orbit worlds in our solar system. Known as natural satellites, they orbit planets, dwarf planets, asteroids, and other debris.

Altogether, NASA now recognizes over a dozen ocean worlds in our solar system alone. Mars: The desert planet with a mysterious past Mars, the Red Planet, is now a dry and dusty world, but it wasn ...

If there were one, that Planet Nine would "nudge the closest part of 2017 OF201's trajectory inward until Neptune flung it out of the solar system." Because 2017 OF201 is there, that could be an ...

On June 10, Mnet released a teaser for the upcoming program’s signal song, which is called “HOLA SOLAR.” “BOYS II PLANET” will premiere the song through a global showcase on June 12 at 6 ...

A possible cousin of Pluto seems to be circling the far reaches of the solar system. The dwarf planet candidate 2017 OF201 travels in a superwide orbit, with the sun relatively near one end of its ...

In contrast, this planet’s composition seems closer to what astronomers expect for primordial hydrogen envelopes. That discovery may improve theories on how these types of planets form and keep their ...

The seven planets in the system closely orbit their star, so that if TRAPPIST-1 were in place of our sun in the solar system, the planets surrounding it would all be within the orbit of Mercury ...

WENATCHEE, Wash. – Whitney Decker and her attorney are blaming the death of the three Wenatchee girls on the lack of mental health resources for veterans and the system itself.

By Jen Kostuchuk, Erik Steiner, and Sean Lyons “I wish adults knew that I really care about the environment and want to help, but I sometimes feel like my ideas don’t matter because I’m just ...

A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 years to complete one orbit around the sun. The object, known as 2017 ...