Astronomers have found thousands of exoplanets — worlds beyond our solar system. Most of them are in single-star systems, ...

Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? In a paper ...

Our solar system was formed about four and a half billion years ago, from a massive cloud of gas and dust which collapsed on ...

In 2023, Axiom Space announced plans to deploy an orbital data center on board its planned space station, which is expected ...

Combining with one other previously confirmed planet, one of our closest stellar neighbors now has a family of four.