These incredible images reveal the exact moment when planets began to form around a star 1,300 light-years from Earth.

Astronomers first identified these minerals using the now-three-year-old James Webb Space Telescope. To see where exactly the ...

Astronomers have captured a rare glimpse inside HOPS-315, a young star that appears to sit at the center of a nascent version of our own solar system.

Trans-Neptunian objects (TNO) are some of our solar system's lesser-known objects. They number in the thousands, and they get ...

The Parker Solar Probe, designed, built, and operated by the Johns Hopkins Applied Physics Lab, captured the images during ...

Pluto is the tiniest planet in our solar system with a diameter of roughly 2,377 kilometers, making it even smaller than our moon. Check out these 7 rare photos of Pluto clicked by NASA.

A possible cousin of Pluto seems to be circling the far reaches of the solar system. The dwarf planet candidate 2017 OF201 travels in a superwide orbit, with the sun relatively near one end of its ...

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last fall ...

Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have discovered a new planet in our solar system.

Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it as it travels on a ...

Scientists have discovered a new dwarf planet candidate far beyond Pluto in the solar system. Its existence could mean there's no Planet 9.