Amazon is preparing to launch its debut batch of satellites into orbit as it seeks to establish its own internet service for customers worldwide.

In 2020, astronomers detected WD 1856+534 b, a gas giant that orbits a star 81 light-years from Earth. This exoplanet, which ...

Witness the spectacular and destructive consequences of a collision between the solar system's two largest planets.

In a memorable image from the 1977 film “Star Wars,” the young hero Luke Skywalker gazes at two suns setting above the horizon on his desert planet Tatooine. Astronomers since then indeed have ...

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...

When a planet's orbit brings it between Earth and a distant star, it's more than just a cosmic game of hide and seek. It's an ...

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

NASA's Lucy will venture as close as 596 miles to this asteroid, an estimated 2 ½ miles in length but much shorter in width.

New research suggests meteor showers are so unpredictable due to the Sun’s own motion around the solar‑system barycenter.

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