Mathematical evidence indicates that our universe is flat, but it could be infinitely big, as well. You can figure out if an ...

The Hubble constant, a set number that connects a galaxy’s speed to its distance from Earth and tells us how fast the ...

The Big Bang is often described as the explosive birth of the universe – a singular moment when space, time and matter sprang ...

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

A dam Riess was 27 years old when he began the work that earned him the Nobel Prize in Physics, and just 41 when he received ...

Scientists have long puzzled over a discrepancy in how fast the universe is expanding, but new, sharper data from the James ...

Discover interesting facts about what black holes are, how they form and what would happen if you fell into one.

New estimate suggests that the most persistent stellar objects may decay away via Hawking radiation within the next 10^78 years ...

How can fission-powered propulsion help advance deep space exploration, specifically to the outer planets like Jupiter, ...