Our Solar System is home to many unique planetary bodies, including protoplanets and dwarf planets. Here are the unique ...

Astronomers have detected the chemical fingerprint of a frozen, water-rich planetary fragment being devoured by a white dwarf ...

In our nearby stellar neighborhood, a burned-out star is snacking on a fragment of a Pluto-like object. With its unique ultraviolet capability, only NASA's Hubble Space Telescope could identify that ...

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

Ceres, the only dwarf planet in our inner solar system, is covered in ice and salt deposits. Its daytime temperatures range ...

"Makemake is one of the largest and brightest icy worlds beyond Neptune, and its surface is dominated by frozen methane," ...

Webb uncovers methane on Makemake, showing the icy dwarf planet is more active than once thought - just like Pluto.

In a study published in the Monthly Notices of the Royal Astronomical Society (MRNAS), astronomers from the University of Warwick, Europe, and the United States found strong evidence that ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

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

In Roman mythology, Pluto is the god and ruler of the dead. For a return mission to the dwarf planet, Howett and her colleagues opted for the name Persephone, after Pluto's wife and "queen of the ...

A Southwest Research Institute-led team has reported the first detection of gas on the distant dwarf planet Makemake, using ...