Our solar system consists of the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, as well as countless asteroids and comets, that are gravitationally bound to the Sun.

Every other solar system planet was named for a Greek or Roman ... a distance that takes light about eight minutes to traverse. Astronomers define this distance as one astronomical unit (AU ...

System Activation – The Define Solar team coordinates directly with local utilities to ensure a smooth turn-on process. Ongoing Support – From friendly customer service to long-term repair and ...

This distant orbathing red dwarf star, at about 47 light-years distance from Earth, presents unique planetary attributes different from all known solar system planets ... to have unusual ...

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...

Material retrieved from the asteroid Bennu by NASA’s OSIRIS-REx spacecraft shows that all the basic building blocks of life were astonishingly widespread in the early solar system ...