For reference, Pluto’s average distance from the Sun is about 40 AU, so 2023 KQ14 is quite distant. At 23.4 billion miles (37 ...

Because Pluto is so dim, you need a telescope to see it. “A backyard telescope could do it under the right conditions,” says ...

Pluto was long considered our ninth planet, but the International Astronomical Union reclassified Pluto as a dwarf planet in ...

A telescope has discovered a new world on the edge of the Milky Way – potentially confirming the ‘Planet X’ theory. Beyond ...

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

Credit: MARK GARLICK/SCIENCE PHOTO LIBRARY via Getty Images 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 ...

Scientists want to study a distant world in the solar system that is classified as a dwarf planet. But some experts think it ...

Answer: Kershaw's great uncle, Clyde, was from Streator and is the man who discovered Pluto, the dwarf planet that's so far ...

We still don't know for sure if there's a ninth planet in our solar system, but a new discovery could help to prove that ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

Perplexity AI scores 360-million-customer win in India; Australian billionaire’s political party suffers data breach, won’t ...