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

What happened after the Big Bang? What happened immediately after ... A third mission, with instruments sensitive to ...

New research suggests that as more black holes were born in "little Big Bang reverse replays" in the 14.6 billion-year-old ...

His contributions to string theory have been myriad, including the time in 1995 when he gave the then somewhat moribund field a much-needed boost by showing how the five different variations of ...

We live in an amazing time for understanding the universe. Our powerful telescopes show that the cosmos is simpler than expected on the largest scales. Meanwhile, particle physics experiments at the ...