Across cosmic history, powerful forces have acted on matter, reshaping the universe into an increasingly complex web of ...
Is the universe flat and infinite, or something more complex? We can’t say for sure, but a new search strategy is mapping out ...
The Big Bang Theory explains how the universe began. The Big Bang Theory stands as the most widely accepted explanation for the origin of the universe. According to this theory, the universe began ...
On March 15, 2024, a space-based observatory detected bursts of low-energy X-rays from deep in the ancient universe, ...
Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...
The Hubble constant is one of the most important numbers in cosmology because it tells us how fast the universe is expanding, which can be used to determine the age of the universe and its history. It ...
The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...
Thus, we are surrounded by a "horizon" that we cannot look beyond—a horizon set by the distance that light can travel over the age of the universe. This horizon describes the visible universe ...