Small, compact galaxies seen in the early universe have puzzled astronomers – finding these unusual objects closer to home ...

How old is the universe? Learn more about the age of the Universe, from it's explosive beginnings to how we on Earth can ...

A new study suggests that the explosive deaths of the universe's earliest stars created surprising quantities of water that may have sparked extraterrestrial life in the very first galaxies.

Other telescopes also are peering into the early universe. The new James Webb Space Telescope (JWST) has now imaged a galaxy that existed about 325 million years after the birth of the universe in ...

It is a simulation of the early universe, a time after the Big Bang when the cosmos transformed from a place of utter darkness to a radiant, light-filled environment. The stunning video is part of a ...

Physicists have also gotten clues about the early universe from experiments that examine massive particles produced in particle accelerators. They have found that certain types of particles decay—or ...

Astronomers may finally have laid eyes on a population of enormous but elusive galaxies in the early universe. These hefty, star-forming galaxies are shrouded in dust, which hid them from previous ...

In the early universe it was the other way around — charged hydrogen and neutral helium — but the end result was the same: HeH+, the first molecule to form after the big bang.

New computer simulations reveal how the early universe would have appeared 500 million years after the theoretical Big Bang. According to the standard Big Bang model, the universe was born about ...

Supermassive black holes are some of the most impressive (and scary) objects in the universe—with masses around 1 billion times more than that of the sun. And we know they've been around for a ...

The atomic composition of stars in the early universe determined how long it took to heat the intergalactic medium once stars began to form. Key to this is the high-energy radiation, primarily X ...