When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

The city of Flagstaff has taken big steps to preserve the clarity of its night sky. Find out the best ways to experience the ...

Scientists have discovered a new type of planetary collision called “kiss-and-capture,” where Pluto and proto-Charon briefly ...

Denton explained, “Pluto and Charon are smaller, colder, and primarily made of rock and ice. When we accounted for their material strength, we discovered something completely unexpected.” ...

THE ancient Turkish city of Hierapolis hosts what is believed to be the oldest ‘Gate to Hell’ on Earth. It is a passage once ...

In 1928, the amateur astronomer was offered a job at Lowell Observatory in Arizona, where he discovered Pluto. In 1934, he married Patricia Edson. They had two children, Annette and Alden.

Seuk Kim left behind a finance career to chase his dream of becoming a pilot. He took off one day in November with four dogs ...

"Pluto and Charon are different—they're smaller, colder and made primarily of rock and ice,” said Denton. “When we accounted for the actual strength of these materials, we discovered ...

While Charon is currently listed as a satellite or moon by the International Astronomical Union (IAU), consideration is being given to it perhaps being classified as a dwarf planet in its own right, ...