A ' quasar ' is a celestial body that exists in the center of the galaxy, blows out matter vigorously, and shines brightly with a power comparable to that of 1 trillion fixed stars ...

Astronomers used an array of telescopes to find the most massive radio jet in the early universe. The celestial object is hundreds of thousands of light-years long.

Christian Wolf, an author from the Australian National University described the newly found celestial body as: "This quasar is the most violent place that we know in the universe. It looks like a ...

The recorded radiation from the quasar was only one-thousandth as great as that from a starlike object called Sco XR-1—which appears to be the brightest X-ray emitter in the sky (TIME, Sept. 16).

Astronomers used an array of telescopes to find the most massive radio jet in the early universe. The celestial object is hundreds of thousands of light-years long.

For the first time, scientists have peered back to the early days of the universe and found it moved five times slower than it does today.

Glistening like a celestial engagement ring deep in outer space, this stunning new image shows a quasar located roughly six billion light-years away from Earth. Quasars are the super-bright and ...

Astronomers have found a new record for the brightest body in the universe after discovering a monstrous quasar that shines roughly 500 trillion times brighter than the sun.

In that case astronomers refer to the celestial body as a gravitational lens, because gravity from the object bends the quasar's light, much as the lens from a magnifying glass bends and refocuses ...

The Hubble Space Telescope imaged celestial object Z-229-15, which is simultaneously classified as a Seyfert galaxy, an active galactic nucleus (AGN), and a quasar.