The most popular theory of our universe's origin centers on a cosmic cataclysm unmatched in all of history—the big bang. NASA's James Webb Space Telescope (JWST) captured this image of the ...

How do astronomers describe the shape of the universe, and what could it mean for the fate of the cosmos ... would converge back onto their point of origin and cross over each other.

Back in the mid-1990s, cosmologists—who study the origin, composition and structure of the universe—were beginning to worry that they were facing a crisis. For starters, two astronomers had ...

Dark energy makes up about 70 percent of the current content of the Universe and thus holds the ultimate fate of our Universe. Several possible scenarios are possible depending on the properties of ...

Scientists are homing in on the nature of a mysterious force called dark energy, and nothing short of the fate of the universe ... 11 billion years of the universe's history.

A new telescope image showcases two entangled galaxies that will eventually merge into one millions of years from now — and previews the eventual, similar fate of our own Milky Way galaxy.The ...