Beyond this, the universe may continue to stretch far beyond what we can measure or even imagine. The size of the universe is further complicated by its constant expansion, a discovery made by ...

The term ‘Big Bang’ might make you think of a massive explosion. Put the thought out of your head. Rather than an explosion, it was the start of everything in the universe.

In the late 1990s, astronomers discovered that the expansion of the universe, initially set off by the big bang, has been subtly speeding up over the last few billion years. The acceleration was ...

This would lead to a “ big freeze ” where the dark energy is spread so far out that the temperature everywhere becomes the same, essentially freezing the universe into a motionless, low-energy ...

The Big Wheel’s stellar disk is about 30 kiloparsecs in diameter, or nearly 98,000 light-years across. For reference, the Milky Way’s diameter is about 100,000 light-years, about the same size ...

Previous observations from the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile suggested that water existed about 780 million years after the Big Bang, when the young universe was ...

When the universe was still in its infancy, less than 1 billion years old, star formation fed on hydrogen that emerged from the Big Bang. Credit: NASA / ESA / A. Schaller (for STScI) illustration ...

While it's much smaller than the largest supermassive black holes detected, it's still a whopper considering how early in the history of the universe it appeared.