In 2006, Pluto was famously demoted from a planet to a dwarf planet. It remains the most famous dwarf planet today, but there are others in our solar system, including potentially hundreds that ...

After a star like the Sun reaches the end of its life, a new planet may be born from its remains—a strong candidate for the ...

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

In ancient mythology, the phoenix was a miraculous bird with a cyclical pattern of life and death, perishing in flames only ...

Scientists detected the very first exoplanets around a pulsar — a type of rapidly rotating dead star — and because pulsars ...

WASHINGTON (Reuters) -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 ...

Planets are supposed to form early, out of the dust and gas left over when a star is born. Around one dead star, astronomers have found signs of a giant planet that seems to have formed much later, ...

The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior. The organic material found in a few areas ...

In approximately 5 billion years, the sun will deplete its hydrogen fuel and collapse under its own gravity, becoming a white dwarf. Though Earth-sized, this dense remnant will retain much of the ...

Astronomers first began detecting the Helix Nebula’s X-ray signals in 1980. Although they knew the signals came from the center of the nebula, they didn’t know the specific source. The Helix Nebula is ...