The observable universe is vast, extending about 93 billion light-years across, containing galaxies, stars, planets, and all ...

However, the observable universe extends farther than 13.8 billion light-years in every direction because, for all the time space has existed, it’s also been expanding.

Imagine discovering the universe’s most powerful explosion, an event so significant that it won the Nobel Prize in Physics. This video dives into the moment scientists first detected ...

In all directions in space, we can detect the cosmic microwave background (CMB). This is the leftover radiation from around 400,000 years after the universe began, that is faintly detectable and ...

This barrier marks the edge of the observable universe, though scientists have come up with a few theories about what may lie beyond. Image courtesy WMAP/NASA. By Nadia Drake. March 13, 2023 ...

The universe is 13.8 billion years old, but the observable universe stretches more than 13.8 light-years in every direction. That's because the universe is expanding and light got a head start ...

Science’s best guess at how the universe came into being includes the Big Bang followed by a moment of rapid inflationary expansion.; However, this theory left a few mysteries and quirks in its ...

The map uses data from the Sloan Digital Sky Survey, a project to create a 3D map of the universe using a telescope at Apache Point Observatory in New Mexico.Running in various forms since 2000 ...

A flat universe agrees with both observation and theory, so the idea now sits at the heart of modern cosmology. The problem is that, unlike a spherical universe, a flat one can be infinite — or not.

Read more: 25 years after its discovery, dark energy remains frustratingly elusive Ghosts in the machine . This ramping up of the acceleration, ironically, would make the observable universe far ...