Nowadays, the dark of night is interspersed with the light of stars. But before the stars were born, did light shine at the beginning of the universe? The short answer is "no." But the long answer ...

How did the universe come into being? There are a multitude of theories on this subject. In a Physical Review Letters paper, three scientists formulate a new model: according to this, inflation, the ...

Was the Big Bang really the beginning of the universe, or are we 'bouncing' between periods of expansion and contraction? A new theory makes testable predictions. When you purchase through links on ...

NASA Launches Missions to Study Sun, Universe's Beginning PR Newswire WASHINGTON, March 12, 2025 WASHINGTON, March 12, 2025 /PRNewswire/ -- NASA's newest astrophysics observatory, SPHEREx, is on its ...

The Big Bang theory has dominated our understanding of the universe’s origin for almost 100 years. It describes a moment when all of space, time, and energy were born from a single infinitely dense ...

And that’s why many people question it. Yes, so we said that instead, why not have a universe which had no beginning. It has been there all the time, but it will be oscillating. It is expanding, ...

CC0 Usage Conditions ApplyClick for more information. The most remarkable developments in the last century of astronomy are the enormous expansion in the power of both our observing capabilities and ...

Here’s what you’ll learn when you read this story: A new paper adjusts an equation that defines our universe in response to recent new data. The cosmological constant, which describes how our universe ...