Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

NASA’s Galileo spacecraft, which was designed to study the large, gaseous planet Jupiter and its moons, first caught hints of ...

How does a compass work in space? From the moon to Venus, here’s how a compass would work beyond Earth’s magnetic field.

All of Earth's planetary neighbors are about to be visible in the night sky next week – though you may need binoculars to see ...

So, if astrobiologists ever do find alien life with a weird chemistry that uses some liquid other than water, it's not likely ...

Mississippi stargazers will be able to see 4 or 5 planets in the night sky with their naked eye this month. Will you be able ...

Planets will align on Feb. 28 in a semi-rare phenomenon that only occurs every few years. Can you see it in Georgia? Here's ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...