While Charon is currently listed as a satellite or moon by the International Astronomical Union (IAU), consideration is being given to it perhaps being classified as a dwarf planet in its own right, ...

Pluto and Charon, however, are very different from our Earth and moon. While the moon clearly orbits Earth, Pluto and Charon orbit each other. “Charon is HUGE relative to Pluto, to the point ...

Pluto and Charon actually form a binary system. Whereas a moon usually orbits a planet, both Pluto and Charon orbit a point in space between them — their common center of mass. The other four ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

A planet orbits around a star, and a moon orbits around a planet ... and suspended additional liftoffs by Starship. Is Pluto a planet? And what is a planet, anyway? Test your knowledge here.

Just as Sun, Moon, Mercury, Venus and Mars move through the signs of the zodiac as they orbit, so do the outer planets.

Read A sky chart showing Mars, Jupiter, Saturn, and Venus in a "planet parade." Credits: NASA/JPL-Caltech On most ...

NASA was formed in 1958 "to provide for research into problems of flight within and outside the Earth's atmosphere, and for ...

Charon is large in size relative to Pluto, and is locked in a tight orbit ... behemoth in the Larger Magellanic Cloud, a galaxy that orbits about 160,000 light-years from the Milky Way.