YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

NASA discovered five exoplanets orbiting stars in under 24 hours, challenging planetary models and providing insights into ...

A new study examines how much material from the closest star system to Earth will end up in orbit around the Sun, and how ...

Blue Ghost will spend the next 16 days in lunar orbit, if all goes to plan. It will conduct additional engine burns to circularize its path around Earth's nearest neighbor, then attempt a landing in ...

REx mission has an historic opportunity to closely observe the asteroid Apophis and improve our ability to defend against ...

Asteroids that orbit close to the Earth inevitably cause us some anxiety due to the even remote possibility of a collision.

The Tarantula Nebula, also known as 30 Doradus, is revealed in an unusual light in this exceptionally deep Chandra X-ray ...

An international team of researchers has confirmed the existence of an exoplanet first identified by Oxford researcher Dr Michael Cretignier in 2022. Researchers have described the planet as “among ...

It was, of course, a great joy for me when we could confirm the planet’s existence,” said Dr. Cretignier. “It was also a ...