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Cosmologists have concluded that the universe doesn’t appear to clump as much as it should. Could both of cosmology’s big puzzles share a single fix?
Modified gravity theories have never been able to describe the universe’s first light. A new formulation does.
Astronomers are discovering that magnetic fields permeate much of the cosmos. If these fields date back to the Big Bang, they could solve a major cosmological mystery.
The astrophysicist and social media phenom Katie Mack is ready to tell you about the fate of the universe.
After a burst lit up their telescope “like a Christmas tree,” astronomers were able to finally track down the source of these cosmic oddities.
Physicists have proposed extra cosmic ingredients that could explain the faster-than-expected expansion of space.
And why is the black hole at the center of our own galaxy so dim?
The recent discovery of some of the first galaxies in the universe illuminates the darkest era in cosmic history.
A problem confronts cosmology: Two independent measurements of the universe’s expansion give incompatible answers. Now a third method, advanced by an astronomy pioneer, appears to bridge the divide.