One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate.’
In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...
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Hubble Spies Spiral That May Be Hiding Imposter
Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...
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James Webb Space Telescope reveals how a cosmic 'Phoenix' cools off to birth stars
Like its mythological namesake, the Phoenix Cluster burns with blisteringly hot gas, which cools to birth stars. The James ...
7 very rare and beautiful images of interacting galaxies captured by NASA
NASA has captured breathtaking images of seven rare and stunning interacting galaxies, showcasing cosmic collisions, ...
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Great Mysteries of Outer Space: Dark Energy and the Hubble Tension
Around 13.7 billion years ago, something collapsed. It fell outward into the nothingness that stretched in every direction, ...
A Star Might Have Faked Its Own Death and Hubble Is Investigating
The dazzling spiral galaxy in this Hubble Space Telescope image is UGC 5460, located about 60 million light-years away in the ...
NASA’s Webb Telescope Finds The Hidden Gas Fueling Star Birth In Phoenix Cluster
This breakthrough builds on more than a decade of research using NASA’s Chandra X-ray Observatory and Hubble Space Telescope, along with several powerful ground-based observatories.
7 beautiful photos of Milky Way shared by NASA
The center of our Milky Way galaxy is hidden from the prying eyes of optical telescopes by clouds of obscuring dust and gas.
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'Dead' Galaxy Cluster Is Making Stars Again And Astronomers Don't Know Why
The Phoenix Cluster's central galaxy is about 5.8 billion light-years away and should be mostly done with star formation.
This massive ‘bouquet’ is actually where stars have been born for 25 million years
A nebula that neighbors the Milky Way galaxy happens to be a powerhouse of forging stars, "a bouquet of thousands of stars in ...
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Astronomers recently discovered the largest known object in the universe
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 ...
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Hubble reveals key details about a massive star cluster
Astronomers using the Hubble Space Telescope (HST) have studied one of the largest young star clusters in our galaxy, ...