Gauging the mass of a black hole is tricky, but astronomers have devised multiple methods to measure the heft of these galactic gluttons ...
Space.com on MSN
Zoom through the Milky Way's stellar nurseries in this super-detailed 3D map (video)
"Gaia provides the first accurate view of what our section of the Milky Way would look like from above," Lewis McCallum, an ...
Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the NumbersAt the ...
Live Science on MSN
'Like trying to see fog in the dark': How strange pulses of energy are helping scientists build the ultimate map of the universe
Astronomers are using radio pulses from space to find missing baryonic matter and learn about supermassive black holes, ...
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