A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

A dead galaxy, over 11 billion years old, has surprised astronomers with powerful radio bursts. Once thought to be lifeless, ...

The NASA/ESA/CSA James Webb Space Telescope has captured and amazing view of the Sombrero Galaxy (Messier 104). The galaxy is ...

Astronomers say they've detected a mysterious type of signal known as a fast radio burst coming from an ancient, dead galaxy.

Across cosmic history, powerful forces have acted on matter, reshaping the universe into an increasingly complex web of ...

About 100 years after astronomer Edwin Hubble's discovered the "magnificent" spiral nebula, the Hubble Space Telescope and ...

This discrepancy is measured using a metric called Sigma 8 (σ8), which tracks the clumpiness of matter. Lower-than-expected ...

In February 2024, scientists on Earth detected a powerful radio blast from outer space. Seeking to discover where it had come ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

The other large galaxies are the Andromeda Galaxy, and Messier 33 (the 33rd entry in Charles Messier's catalog of fuzzy things in the sky). Also in the Local Group are a couple dozen dwarf galaxies.

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...