In 1916, Albert Einstein discovered that his theory of general relativity predicted the existence of gravitational waves — ...

Step beyond the origin of time and space as we explore the mysteries of the universe before the Big Bang. This video delves ...

For more than two decades, the standard model of cosmology has stood as a reliable guide to the universe. Known as Lambda ...

Dark matter has less of a stranglehold on the cosmos, accounting for around 26% of the universe's total energy and matter budget.

For decades, scientists suspected this ion played a critical role in cooling the early cosmos, helping the first gas clouds ...

The Big Bang: The moment when our universe — everything in existence — began....Right? Turns out, it's not quite that simple. Today, when scientists talk about the Big Bang, they mean a period ...

How big is the Universe? Is it finite or infinite? These questions have puzzled astronomers, scientists, and curious minds for centuries. In this journey through the cosmos, we’ll explore the ...

When the James Webb Space Telescope (JWST)—the long-awaited successor to the Hubble Space Telescope—becomes operational in 2022, one of its first orders of business will be mapping the earliest ...

New Scrollable Map of the Cosmos Reminds Us How Tiny We Really Are It's unsettling to flip through a website scientists made that details the observable universe.

Still, the Newtonian cosmos was static: space was simply the background arena, the stage wherein natural phenomena unfolded. When we get to Einstein and 20th-century cosmology, things get subtle.