The cosmic microwave background tells us a great deal about the origin and history of our universe. But how?
A natural fission reactor allows us to look at physical constants over time, and through it we can put astrophysics to the test.
New observations of distant quasars find no evidence for quantum foam, and proves that the universe is not a hologram.
Our view of the night sky connects us to the history of the cosmos.
The universe is made of matter, but particle physics shows that matter and antimatter should be created in equal amounts. So where’s the antimatter?
Just how far is the most distant galaxy known? That depends on what you mean by distance.
Fluctuations in the cosmic microwave background are due in part to a combination of gravity and cosmic expansion known as the Sachs-Wolfe effect.
A cosmic mystery known as the CMB cold spot is shown to be caused by a galactic void 1.8 billion light years wide
Did early galaxies form around black holes, or did black holes form within young galaxies?