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Ask Ethan: What were the “dark ages” of the Universe?
Ask Ethan: What were the “dark ages” of the Universe?
The hot Big Bang was an energetic, brilliantly luminous event. Today’s Universe is alight with stars. But in between, the dark ages ruled.
Ethan Siegel
Sep 29
Pulsars, not dark matter, explain the Milky Way’s antimatter
Pulsars, not dark matter, explain the Milky Way’s antimatter
An enormous amount of antimatter is coming from our galactic center. But the culprit probably isn’t dark matter, but merely neutron stars.
Ethan Siegel
Sep 28
JWST’s first triple-image supernova could save the Universe
JWST’s first triple-image supernova could save the Universe
Named “Supernova H0pe,” it shows how JWST plus gravitational lensing can be used to solve the greatest puzzle facing astronomy today.
Ethan Siegel
Sep 27
October 14, 2023’s annular eclipse will have huge consequences 6 months later
October 14, 2023’s annular eclipse will have huge consequences 6 mo...
An annular eclipse is coming to Earth on October 14, 2023. Six months later, a total solar eclipse is headed our way. Here’s the reason…
Ethan Siegel
Sep 26
JWST reveals dusty secrets inside spiral galaxies
JWST reveals dusty secrets inside spiral galaxies
How does star-formation, occurring in small regions within galaxies, affect the entire host galaxy that contains it? JWST holds the…
Ethan Siegel
Sep 25
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