The unusual orbit of a possible dwarf planet, known as 2017 OF201, makes it less likely that our solar system contains a ...

There’s a new frozen oddball orbiting the Sun, and it’s not your average space rock. It’s a planet—a minor one, to be ...

A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the Institute for Advanced Study's School of Natural ...

The asteroid poses no threat to the moon or Earth. A newly discovered house-size asteroid is set to make a close, yet ...

Astronomers have discovered that "super-Earth" planets may exist on wider orbits than previously thought — and this implies these rocky, or "terrestrial," worlds are far more common than was suspected ...

They found that volcanic gases lacked significant steam, indicating the planet's interior ... 1453 c is twice Earth’s size and may have a... Astronomers have revealed new evidence that there ...

The planet is "crumbling to pieces," shedding the equivalent of Mount Everest’s mass every 30.5-hour orbit and will be ...

The discovery of this new, farther-out super Earth is even more significant ... than Earth all the way to the size of Jupiter and beyond shows us that planets, and especially super-Earths, in ...

Eos, a crescent-shaped gas cloud, is located about 300 light years away from Earth and is the size of ... The cloud's discovery could further shed light on how stars and planets form, the ...

Astronomers have discovered ... of the larger planet population. "This gives more room for the unexpected," Yee said. "This measurement of the super-Earth population provides a new piece of ...