Astronomers Say They Finally Found Half the Universe’s Matter. It was Missing In Plain Sight
An artist’s depiction of the halo of hot hydrogen gas surrounding the Milky Way galaxy (center) and two…
Astronomers Just Nailed Down the Universe’s Expansion Rate… and Now They Have More Questions
One major, unsolved problem in astronomy involves the Hubble constant, a number representing how quickly the universe expands.…
Groundbreaking new theory rewrites quantum view of the Big Bang
A Gravity Theory That Could Rewrite the Universe’s First Moments The first fraction of a second after the…
Ancient Milky Way stars challenge the age of the universe and the Hubble tension
The oldest stars in the Milky Way are forcing a fresh look at one of cosmology’s biggest arguments.…
The observable universe is just 5% of reality, 95% remains invisible!
Ordinary matter, also called baryonic matter, consists of protons, neutrons, and electrons. This is the material that emits…
Observable universe is 93 billion light years wide but what’s beyond it? Here’s what we can’t see…
One of the most important pieces of evidence for this limit is the cosmic microwave background radiation, faint…
Radical New Theory Rewrites the Story of the Earliest Universe
Following the Big Bang, our universe expanded at an exponential rate. According to this theory, known as cosmic…