SPHEREx will explore the universe in 102 infrared colors, providing unprecedented insights into cosmic origins.

Joe MurchisonPlacerville, California Astronomers widely accept that the universe formed in theContinue reading "How can the visible universe be 46 billion light-years in radius when the universe ...

These are big, literally cosmic questions, and astronomers continue to struggle to nail down the answers. Different ...

Launching by 2025, NASA’s SPHEREx mission will map hundreds of millions of galaxies in 102 infrared colors to investigate the ...

There will be light, feebly, at the end. In all its forms—visible and invisible—it saturates the universe. Light is more than a little bit inscrutable. Modern physics has sliced the stuff of ...

The first piece of the Euclid space telescope's map of the universe is crammed with 14 million galaxies and 100 million sources of light. The mapping project is now 1% done.

In special relativity, the speed of light is the ultimate speed limit to the universe. Every single moving object in the universe is constrained by that fundamental limit. This isn’t something like ...

spans 16 million light-years, or 100 Milky Ways. Porphyrion beats out this previous record holder, Alcyoneus, not only with its absolute size but also with its relative influence on its cosmic ...