A study suggests that the ice giant's largest moon, Triton, made a dramatic entrance to the Neptunian system long ago, ...

Our solar system appears beautifully organized, but its stability is actually the result of an incredibly delicate cosmic ...

Earth has a group of cosmic stalkers. Known as "co-orbitals," these small bits of rock have a 1:1 mean motion resonance with ...

A stunning celestial trio featuring the crescent Moon, Venus, and Jupiter will grace the west-northwest horizon between May ...

As NASA's Juno flew around Jupiter last week, the spacecraft snapped a photo of an object before it could make a clean getaway. That clunky, bumpy thing at the far right edge of the frame is Thebe, ...

NASA's Juno spacecraft has snuck a peek at one of Jupiter's largest inner moons. During a close flyby, the spacecraft got a look at Jupiter's moon Thebe from just 3,100 miles (5,000 kilometers) away.

Venus and Jupiter are the top evening features for your observing run after sunset in May. Jupiter also hosts a handful of exciting double transits - and double shadow transits - involving Europa and ...

A one-way trip to Mars takes somewhere between seven and 10 months, following a fairly direct route between Earth and our neighboring planet. But what if we could cut that journey by more than half, ...

If you have binoculars, you may even spot some of Jupiter’s largest moons as tiny pinpoints beside the planet NICHOLAS KAMM/AFP via Getty A waxing crescent moon and Jupiter will appear close together ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Skywatchers who look high in the western sky after dark on ...

Another day, another show in the sky! If you look up after dark on Wednesday, April 22, you’ll catch a charming moment in the cosmos, no telescope required: a glowing waxing crescent moon hanging near ...

The two largest planets in our solar system, Jupiter and Saturn, also have the largest satellite systems, or the most moons. At present, Jupiter's reported moon count stands at more than 100 moons, ...