If you look across space with a telescope, you’ll see countless galaxies, most of which host large central black holes, billions of stars and their attendant planets. The universe teems with huge, ...

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 ...

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 ...

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 ...

The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, good ol' Earth helps us understand what the universe might be doing beyond ...

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 ...

The observable universe is 93 billion light-years wide — but what’s beyond it? Astronomers have found strange patterns in the ...

Imagine being able to gaze at the very edge of the observable universe and witness a dazzling array of galaxies. NASA has now made this extraordinary experience possible by releasing an expansive map ...

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 ...

The universe is literally everything, the sum of all existence. It includes all matter, like stars and galaxies. The universe also includes all radiation and all other forms of energy. No matter where ...

See you in a quadrillion years or so. Don’t forget to pack zillions of tons of snacks! By Randall Munroe The edge of the observable universe is about 270,000,000,000,000,000,000,000 miles away. If you ...

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 ...