Astronomers have found the most luminous object in the known universe, hiding in plain sight. Quasars are the brightest objects in the cosmos. So bright, in fact, that when they were first spotted in ...

Astronomers have spied a monster radio jet in the distant universe that’s twice the width of the Milky Way galaxy. The ancient object formed when the universe was less than 10% of its current age of ...

CAPE CANAVERAL, Fla. — Astronomers have discovered what may be the brightest object in the universe, a quasar with a black hole at its heart growing so fast that it swallows the equivalent of a sun a ...

“Extraordinary claims require extraordinary evidence,” Carl Sagan once warned a maxim now resonating through telescopes worldwide as astronomers grapple with a mind-bending new discovery. The James ...

The biggest objects in the universe are clusters of galaxies, such as the supercluster we live in right now - and including Abell 370, which was captured in a sprawling glittery space-scape by the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...

Scientists may have glimpsed some of the oldest material in the universe. According to a new, yet-to-be-peer-reviewed study, researchers found an unidentified object nearly 13.5 billion light years ...

You’d assume that the brightest object in the known universe would be a pretty easy thing to discover, but astronomers have only just spotted it. This overlooked show-off is a supermassive black hole ...

Dark matter is believed to make up more than 80 percent of all matter in the universe, but what it actually is remains a mystery. Now, astronomers have found something that gives us a major clue. This ...

With the aid of a multinational network of radio telescopes, scientists have been able to detect the lowest-mass dark object ever found in the universe. The mysterious object, roughly one million ...