earth2d
Two enormous "bubbles" discovered towering above and below our Milky Way galaxy
In the heart of our Milky Way galaxy, two gigantic "bubbles" extend roughly 50,000 light-years above and below the galactic ...
One large Milky Way galaxy or many galaxies? 100 years ago, Edwin Hubble settled astronomy's 'Great Debate'
A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...
techexplorist1d
A giant radio galaxy could be home to almost 30 Milky Way galaxies
Giant radio galaxies (GRGs) are massive, with plasma jets powered by supermassive black holes at their centers, stretching ...
earth1d
100 years ago: Edwin Hubble proved the Milky Way is not the only galaxy in the universe
In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...
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Hubble Probes Galaxy's Nine-Ring Mystery
Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...
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Milky Way’s Black Hole Just Lit Up in a Way We’ve Never Seen Before
Image: CfA/Mel Weiss Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the Milky Way galaxy for the ... whether cooling, high-energy electrons are ...