quasars
The Universe’s Missing Matter. Found!
Thanks to a recent study by an international team of scientists, the remaining missing normal matter of the Universe may…
Weekly Space Hangout – Jan 17, 2018: Dr. Bram Venemans and Distant Quasars
Hosts: Fraser Cain (universetoday.com / @fcain) Dr. Paul M. Sutter (pmsutter.com / @PaulMattSutter) Dr. Kimberly Cartier (KimberlyCartier.org / @AstroKimCartier )…
Supermassive Black Holes or Their Galaxies? Which Came First?
It’s a mystery that’s puzzled astronomers for years. Which came first, supermassive black holes or the galaxies that surround them?
Weekly Space Hangout – Mar. 18, 2016: Song of the Stars
Host: Fraser Cain (@fcain) Guests: Paul M. Sutter (pmsutter.com / @PaulMattSutter) Paul, one of our WSH regular panelists, will be…
Peer Into the Distant Universe: How to See Quasars With Backyard Telescopes
“How far can you see with that thing?” It’s a common question overhead at many public star parties in reference…
Winds of Supermassive Black Holes Can Shape Galaxy-Wide Star Formation
The combined observations from two generations of X-Ray space telescopes have now revealed a more complete picture of the nature of…
What is Gravitational Lensing?
Gravity's a funny thing. Not only does it tug away at you, me, planets, moons and stars, but it can…
Astronomers Catch A Quasar Shutting Off
Last week, astronomers at Yale University reported seeing something unusual: a seemingly stedfast beacon from the far reaches of the Universe went quiet.…
When Two Supermassive Black Holes Merge, It’s a Galactic Train Wreck
Most large galaxies harbor central supermassive black holes with masses equivalent to millions, or even billions, of Suns. Some, like…
Distant Galaxies Reveal 3D Cosmic Web for the First Time
On the largest scales, networks of gaseous filaments span hundreds of millions of light-years, connecting massive galaxy clusters. But this…