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Using the Hubble Space Telescope (HST), astronomers have observed a supermassive galactic open cluster designated Westerlund ...

Like its mythological namesake, the Phoenix Cluster burns with blisteringly hot gas, which cools to birth stars. The James ...

A new image from the Hubble Space Telescope shows a cosmic cloudscape, with clouds of dust and gas swirling in beautiful colors.

NASA has captured breathtaking images of seven rare and stunning interacting galaxies, showcasing cosmic collisions, ...

The dazzling spiral galaxy in this Hubble Space Telescope image is UGC 5460, located about 60 million light-years away in the ...

The Phoenix Cluster's central galaxy is about 5.8 billion light-years away and should be mostly done with star formation.

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

Hubble captured Westerlund 1, a massive young star cluster with 50,000+ stars. This study reveals stellar motion, structure, ...

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

The center of our Milky Way galaxy is hidden from the prying eyes of optical telescopes by clouds of obscuring dust and gas.

Researchers use the James Webb Space Telescope to unravel the mystery of rapid star formation in the Phoenix galaxy cluster, ...