Pluto, once a distant mystery, is now revealing astonishing secrets,thanks to NASA’s New Horizons mission. This video dives into the incredible discoveries made during the historic flyby, including ...

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 ...

Astronomers discover Ammonite, a rare icy object beyond Pluto, challenging Planet Nine theory and offering clues to the solar ...

The space probe began making discoveries even before today's flyby. — -- Three billion miles and nearly ten years of travel led up to the moment NASA's New Horizons probe zoomed past Pluto ...

Today, the dwarf planet Pluto orbits the sun from the edge of our solar system and its surface temperature is an inhospitable negative 378 to negative 396 degrees Fahrenheit. But ...

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

A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the Institute for Advanced Study's School of Natural Sciences, has discovered an extraordinary trans-Neptunian object (TNO ...

Pluto and Charon’s unique characteristics make them the largest binary system in the trans-Neptunian region. Their shared orbital axis and comparable sizes—with Pluto’s diameter about 1,200 ...

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 ...