A new study by physicists predicts that the universe could one day collapse in a reverse Big Bang, offering fresh insight into how it might all end.

We know how the universe began. An event we call the Big Bang started it all about 13.8 billion years ago. How the universe ...

About a century ago, scientists were struggling to reconcile what seemed a contradiction in Albert Einstein’s theory of general relativity. Published in 1915, and already widely accepted worldwide by ...

According to the model, dark matter may have started as particles that were hot, light, massless, and fast. As the universe ...

Findings from a new study into the cosmic "afterglow" may rewrite the history of the universe, according to researchers. This afterglow—the "cosmic microwave background" (CMB), the relic radiation ...

The early universe was already warm before reionization, revealing that the first stars did not flicker on in an icy cosmos.

The universe may not have begun with the Big Bang as is generally thought but from the collapse of a massive black hole, a new theory suggests. That is to say this model of cosmology explains the ...

According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

Pt. I, Stars, planets, and life : -- The size and scale of the universe -- From the day and night sky to planetary orbits -- Newton's Laws -- How stars radiate energy (I) -- How stars radiate energy ...

The universe is approaching the midpoint of its 33-billion-year lifespan, a Cornell physicist calculates with new data from ...