Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at its closest point to Earth in its orbit, and Hall had one question on his ...

Earth and the planetary object that gave rise to the Moon were likely born in the same region of the solar system.

A space probe flying past Mars captured images of the red planet's small, mysterious moon. While on a flyby of Mars, Hera was able to use three of its imaging instruments to capture images of Deimos, ...

During a flyby of Mars on Wednesday (March 12), ESA's Hera spacecraft inaugurated use of its science instruments to image the smaller of the planet's two moons, Deimos. The European Space Agency (ESA) ...

MOUNTAIN VIEW, Calif. (KGO) -- The idea of putting a man on the moon was a revolutionary proposal in 1961-- that ambitious goal was achieved in 1969. The last person to go to the moon was 46 years ago ...