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Cosmology
Doppler Effect: How Astronomers Measure Cosmic Motion
The Doppler effect in astronomy is the shift in wavelength or frequency of light from a celestial object caused by its motion relative...
The Cosmic Expansion May Not Be Accelerating After All
A controversial finding by Korean cosmologists suggests that the expansion of the universe may be slowing down.
The Strange Math That Places Our Universe Inside a Black Hole
A striking density coincidence and a puzzling galaxy rotation study raise a question cosmologists keep revisiting: could our universe exist inside a black...
Where Is the Center of the Universe? You're Asking the Wrong Question
The universe has no center. Every point has equal claim to being the middle of everything.
Black Hole Universe: Did Our Cosmos Bounce Instead of Bang?
New research proposes our universe formed from a gravitational bounce inside a massive black hole, not from a singular Big Bang creation.
Baryon Acoustic Oscillations: DESI's Evidence for Changing Dark Energy
Dr. Becky unpacks how DESI used baryon acoustic oscillations to find hints that dark energy may be evolving.
The Ring That Shouldn't Exist
Large scale structure in the universe keeps breaking the rules. The Big Ring, a 1.3-billion-light-year formation, is one of seven structures that challenge...
