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

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

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

Read Spectroscopic data collected from NASA's James Webb Space Telescope is overlayed on an image of the Phoenix cluster that ...

NASA has captured six stunning and rare images of galaxies, showcasing their unique shapes and formations. Among them are ...

The Phoenix Cluster's central galaxy is about 5.8 billion light-years away and should be mostly done with star formation. Many galaxy clusters have a region of hot gas in the intracluster medium (ICM) ...

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 ...

Astronomers using the Hubble Space Telescope (HST) have studied one of the largest young star clusters in our galaxy, ...

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

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

Neighboring galaxies, despite their distance, sometimes link into structures known as clusters, which can link with other clusters to form superclusters. Then there's Quipu, the newly discovered ...