quasars

This is How a Supermassive Black Hole Feeds

A new simulation has provided new insight into how supermassive black holes grow by feeding off of cosmic gas captured…

1 month ago

You can Tell how big a Black Hole is by how it Eats

Astronomers can determine the size of a black hole by the way it consumes nearby matter.

1 month ago

Astronomers see a Rare “Double Quasar” in a Pair of Merging Galaxies

What's better than a quasar? That's right, two quasars. Astronomers have spotted for the first time two rare double-quasars, and…

5 months ago

A new Technique Could use Quasars to Directly Measure the Expansion Rate of the Universe

The evolution of cosmic expansion could be measured by a new method using intensity correlation speckles.

5 months ago

Almost all High-Energy Neutrinos Come From Quasars

Earth is blasted by high-energy neutrinos from the most powerful objects in the universe.

7 months ago

A New Technique to Find Cold Gas Streams That Might Make up the Missing (Normal) Matter in the Universe

Where is all the missing matter? That question has plagued astronomers for decades, because the Universe looks emptier than it…

8 months ago

Astronomers are Starting to Understand the Quasar Lifecycle

Supermassive black holes have a complicated lifecycle. Sometimes they're "on", blasting out tremendous amounts of energy, and sometimes they're "off',…

8 months ago

Gravitational lenses could be the key to measuring the expansion rate of the Universe

Nailing down cosmic expansion could depend on distant quasars, and the time it takes their light to reach us when…

10 months ago

Quasars can twinkle?

It turns out you can teach an old dog new tricks. With a recent upgrade to a 50-year-old radio telescope,…

1 year ago

There’s a Black Hole With 34 Billion Times the Mass of the Sun, Eating Roughly a Star Every Day

In the 1960s, astronomers began theorizing that there might be black holes in the Universe that are so massive -…

1 year ago