Scientists have long held that the universe is expanding at an ever-increasing rate, driven by a mysterious but measurable ...

“The Universe will just get colder and deader from now on,” added Douglas Scott, study author and a cosmologist at the ...

Astronomers may have misread cosmic acceleration for 27 years. The universe may be slowing down, not speeding up.

As if dark energy weren't already mysterious and baffling enough, new research suggests that this unknown force may not be ...

For nearly three decades, astronomers have interpreted the faint luminosity of certain distant explosive stars as a sign of ...

By observing the brightness of distant dying stars, astronomers have long come to believe that the expansion of the universe ...

Physicists have taken the Universe’s temperature, revealing the searing trillion-degree heat of the Big Bang’s first plasma.

The universe's first galaxies were hot messes, according to a recent study. During their younger days, they were wild, ...

Led by doctoral student Tatsuya Kotani and Professor Tomoharu Oka from Keio University, the research team measured the ...

The plot represents the new model with the x-axis and the y-axis showing the minimum sizes of collapsing and expanding regions that can impact cosmological measurements. The contours are independent ...

Researchers have unveiled a new model for the universe’s birth that replaces cosmic inflation with gravitational waves as the driving force behind creation. Their simulations show that gravity and ...

For almost a century, we have known that the universe is expanding. For several decades, evidence has suggested that the expansion of the universe is accelerating. Crucial to those estimates were the ...