Leonard and Sheldon might be the most unlikely to find a girlfriend or get a date, but real-life counterparts Johnny Galecki ...

The Big Bang theory suggests that the universe began as a hot, dense point, expanding into the cosmos we observe today.

The James Webb Space Telescope's discovery of unusually bright and massive galaxies soon after the Big Bang has cast doubt on ...

When we go backwards in time through the history of the cosmos, the distances and volumes shrink, while the average energy ...

Time For Reflection Our understanding of the universe, as advanced as it is, is still riddled with paradoxes and huge ...

Physicist Neil Turok's theory suggests a mirror universe existed before the Big Bang, running backward in time, potentially ...

In order to understand how physics works at a singularity like the Big Bang, we need a theory for how gravity behaves according to quantum theory. Unfortunately, we do not have one. There are a ...

Primordial black holes may be exploding throughout the universe. If we can catch them in the act, it could pave the way to ...

Theoretical physicist Abhay Ashtekar is famous for having worked on an idea for how space-time itself is generated. So we ...

An elusive particle that first formed in the hot, dense maelstrom of the early universe has puzzled physicists for decades.

Black hole formation could be a little Big Bang in reverse, coupling the matter of a dying star with dark energy, the ...