200 Million-Star Tapestry: Hubble’s Astonishing New Portrait of Andromeda
The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...
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 ...
4K James Webb Space Telescope Captures Stunning Sombrero Galaxy
The NASA/ESA/CSA James Webb Space Telescope has captured and amazing view of the Sombrero Galaxy (Messier 104). The galaxy is ...
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What are boson stars — and what do they have to do with dark matter?
These two properties of axions mean that they are exceptionally good at collapsing down to incredibly high densities, pulled ...