Private space company Stoke announces a new design for a rocket engine that could make the Nova launcher's second stage ...

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

A nebula that neighbors the Milky Way galaxy happens to be a powerhouse of forging stars, "a bouquet of thousands of stars in ...

A stunning Valentine's view of a nebula contains hidden depths of starbirth and the violent deaths of massive stars.

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

Astronomers spent a decade compiling this special image with the Hubble Space Telescope and then stitched together 600 photos ...

This image of the Andromeda Galaxy, captured by the Herschel Space Observatory, reveals a detailed view of cool lanes of star formation.

This image was created by combining data from three major observatories: NASA’s Chandra X-ray Observatory, the Hubble Space ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

If you're looking for a way to tell someone that they are out of this world this Valentine's day, maybe look up ...

Astronomers trace the striking pattern to an encounter between a big galaxy and a much smaller one some 50 million years ago.

A bouquet of thousands of stars in bloom has arrived. This composite image contains the deepest X-ray image ever made of the ...