The universe is constantly expanding, and at the moment, researchers believe that the observable universe has stretched 46 billion light-years from its beginning 13.8 billion years ago. By measuring ...

WASHINGTON — Using data from NASA’s Wilkinson Microwave Anisotropy Probe (WMAP), scientists have identified an unexpected motion in distant galaxy clusters. The cause, they suggest, is the ...

If the universe is 13.8 billion years old, why is the observable universe 46 billion light-years across? This video explains ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

The Universe is big, as Douglas Adams would say. The most distant light we can see is the cosmic microwave background (CMB), which has taken more than 13 billion years to reach us. This marks the edge ...

This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. Everything on Earth, in our solar system, our galaxy, and beyond is contained within ...

Astronomers using data from the NASA/ESA Hubble Space Telescopes and other telescopes have performed an accurate census of the number of galaxies in the Universe. The group came to the surprising ...

Back in 2018, a team of astronomers and astrophysicists measured all of the light in the history of the observable universe. Marco Ajello, an astrophysicist at Clemson University, led the team that ...

The observable universe's expansion from a sub-millimeter initial state is a consequence of its ongoing expansion, implying higher densities and temperatures in its earlier stages. The observable ...

This logarithmic view of the Universe shows our solar system, the galaxy, the cosmic web, and the limits of what's observable out to a distance of 46.1 billion light-years away. This view is only ...

NEW YORK--If you want to see what outer space looks like, there may be no better way to do so than to have Carter Emmart take you on a ride there. As part of my Road Trip 2010 project, I got a chance ...

The universe suddenly looks a lot more crowded, thanks to a deep-sky census assembled from surveys taken by NASA’s Hubble Space Telescope and other observatories. Astronomers came to the surprising ...