In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

While the events observed around Sgr A* are dramatic, this black hole is not as active as some at the center of other ...

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

There’s really no reason you can’t use binoculars to look into space – and in fact astronomers have been working on doing so ...

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

Around 13.7 billion years ago, something collapsed. It fell outward into the nothingness that stretched in every direction, ...

This image of the Andromeda Galaxy, captured by the Herschel Space Observatory, reveals a detailed view of cool lanes of star formation. Located 2.5 million light-years from Earth, it is a key member ...

Gene Roddenberry's galaxy spanning Star Trek saga debuted on NBC and helped transform sci-fi television from tired ...

Scientists predict Andromeda and the Milky Way will collide in about 4.5 billion years—reshaping the night sky forever!.

Unpredictable bursts of light are pulsing from the debris surrounding Sagittarius A*, offering new insights into the ...

"Have you ever flipped through old photo albums and suddenly found something fascinating hidden in the background of a ...