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 ...

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

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 ...

Evidence now suggests the universe’s expansion has started to slow, not speed up. The findings imply dark energy is weakening ...

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 ...

Scientists estimate over 100 billion galaxies in the universe, each unique in shape and size, revealing the vastness of cosmic creation.