Perhaps the best known of all comets is Halley, correctly pronounced so that it rhymes with rally, not daily. It is named after the 17th-18th century astronomer Edmond Halley. This ...

NASA has released the Lucy spacecraft's first close-up images of asteroid Donaldjohanson, revealing a peanut-shaped rock that could shed light on how planets formed in our solar system.

2025 HU isn't the only asteroid approaching the Earth today. NASA is also tracking an airplane-sized space rock known as 2025 GD1, which is estimated to be about 86 feet across and will zip past the ...

"These early images of Donaldjohanson are again showing the tremendous capabilities of the Lucy spacecraft as an engine of discovery." ...

A giant sequoia located in Sequoia National Park in California, the General Sherman is 52,500 feet in volume and is more than ...

As the asteroid lines up for a planetary flyby in 2029, space agencies are coordinating to conduct some groundbreaking ...

By contrast, Deimos is tiny, with a radius of 6 km, and quite a bit further out, more than 23,000 km from the surface. It is ...

NASA’s space-faring probe Lucy is set have a close encounter with an oddly shaped asteroid more than 100 million miles from ...

The first was a flyby of the asteroid Dinkinesh on Nov. 1, 2023. This Sunday, Lucy was expected to fly past her second target ...

NASA’s Lucy spacecraft is set for a high-velocity encounter with the asteroid Donaldjohanson on Sunday, April 20, marking a ...

Originally, the hypothesis was that Theia gave the Earth a glancing blow, and the proto-Earth and Theia lost pieces ending up ...

An asteroid called 2020 CD3 was bound to Earth for several years before leaving the planet’s orbit in 2020 and another called 2022 NX1 became a mini-moon of Earth in 1981 and 2022 and will return ...