Shockingly Tiny Galaxy Near Andromeda Is Just One-Millionth the Size of the Milky Way
Andromeda XXXV is only about 20,000 times more massive than our Sun—very small, even for a satellite galaxy. For comparison, ...
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 and in the Milky Way, while Curtis took a more radical position that they ...
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Black holes spew out powerful jets that span millions of light-years – we’re trying to understand their whole life cycle
There is a supermassive black hole at the center of nearly every big galaxy—including ours, the Milky Way (it’s called ...
EurekAlert!3d
A new puzzling observation by James Webb Space Telescope: Galaxies in the deep universe rotate in the same direction
Lior Shamir, a computer scientist in the Carl R. Ice College of Engineering at Kansas State University, published a study of ...
Salon27d
One large Milky Way galaxy or many galaxies?
He calculated M31’s distance as a prodigious 900,000 light ... His measurements marked the end of the Great Debate about the Milky Way’s size and the nature of the nebulae.
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Space Mystery of the Week: Why Does Our Solar System Like Spirals?
Even the little-understood Oort Cloud, at the outer edges of our solar system beyond view, has a partly spiral structure.
Fast-moving stars reveal supermassive black hole inside nearby galaxy
The Large Magellanic Cloud is a dwarf galaxy residing near our Milky Way, visible to the naked eye as a luminous patch of ...
Runaway stars reveal hidden black hole in Milky Way's nearest neighbor
Astronomers have discovered strong evidence for the closest supermassive black hole outside of the Milky Way galaxy. This ...