In a once-a-year event, Saturn is about to reach opposition, with the ringed planet appearing its best and brightest as it approaches its closest point to Earth.

Scientists using the James Webb telescope have spotted an exoplanet orbiting a 'black widow' pulsar in surprising new observations.

NASA scientists have found more intriguing details on speckled Martian rocks spotted by the Perseverance rover. But bringing samples back to Earth will be key.

NASA's Perseverance rover has photographed a peculiar rock formation that looks eerily like a turtle poking its head out from its protective shell.

"Marsquake" data collected by NASA's InSight lander have revealed dozens of mysterious blobs within the Red Planet's mantle. The structures may have been left by powerful impacts up to 4.5 billion years ago.

A conceptual mission known as "Persephone" could explore Pluto and its moons for 50 years  — if it ever gets funded and approved.

A medieval-looking "helmet" rock spotted by NASA's Perseverance rover adds to Mars' gallery of odd shapes.

Uranus' 29th moon was hidden inside the planet's dark inner rings, new observations from the James Webb Space Telescope reveal.

The recent discovery of a potential gas giant circling the nearby star Alpha Centauri A has led to speculation that it may be orbited in turn by a habitable moon that could support life, just like in the "Avatar" movies.

Six of Earth's neighboring planets — Mercury, Venus, Jupiter, Saturn, Uranus, and Neptune — will briefly appear in the sky on the same night, starting Sunday (Aug. 17).