The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it ...

The inner Oort cloud, between 1,000 and 10,000 AU from the sun, displays a spiral formation with arms that extend 15,000 AU.

The Oort Cloud begins roughly 2,000 – 5,000 astronomical units (AU) from the Sun, with 1 AU being the average distance between Earth and the Sun.

A hidden structure at the farthest reaches of our solar system is challenging long-held theories. Using advanced simulations, ...

Airport security rules are changing! There are 5 major updates to the TSA airport security screening checkpoint that every ...

New research suggests the Oort cloud, a shell of icy objects at the edge of our solar system, may feature spiral arms similar to the Milky Way, revealing a complex cosmic structure beyond Pluto.

Learn about the Oort cloud, a vast area beyond the inner solar system that is believed to contain icy objects arranged in a spiral shape.

Most of the long-period comets in the Solar System come from the outer Oort Cloud. The inner region is much more stable. It's closer to the Sun, which means it's more strongly bound by the Sun's ...

The giant cloud of detritus is thought to be the source of strange comets and meteorites flying past Earth such as the ...

Storm modeling not only helps the federal government predict the route, timing and strength of major storms but also allows ...

A newly discovered asteroid, Asteroid 2024 YR4, has raised concerns with a 3.1% chance of striking Earth in 2032.

NASA confirmed Thursday that the space agency may have sidestepped the sweeping layoffs it was expected to implement this week, potentially saving hundreds of newly hired employees and career ...