Veritasium
Half the universe was missing... until now
Explore the fascinating journey to uncover the universe's missing baryons—ordinary matter that had eluded scientists for decades. From the origins of baryonic matter after the Big Bang to groundbreaking discoveries using fast radio...
Astrum
Where Have All the Quasars Gone?
Supermassive black holes and their distribution in the universe.
Astrum
What Does an Exploding Black Hole Look Like?
Quasars, or extremely active black holes are the brightest objects in the universe. But aren't black holes meant to be invisible? Based on the Illustris Project simulation, we also look at radio-mode and quasar-mode feedback, seemingly...
Debunked
Can You Escape a Black Hole?
It’s widely accepted that nothing can escape a black hole, not even light, but that's not entirely true!
Curated Video
Deducing Black Holes
Astrophysicist Scott Tremaine, Institute for Advanced Study, describes how our understanding of black holes has evolved from a time when Einstein didn't actually believe they existed to our present view that so-called "supermassive"...
Professor Dave Explains
Star Systems and Types of Galaxies
We've learned a lot about stars! We know how they form, and we know that most of them exist in galaxies. But how are they arranged within galaxies? And are there different types of galaxies or are they all the same? There is a lot to...
Next Animation Studio
Giant black hole 12 billion times bigger than the sun is baffling scientists
The discovery of a giant black hole which is growing faster than usual challenges our current theories of black hole expansion.
NASA
NASA | Using Quasars to Measure the Earth: A Brief History of VLBI - 3D
VLBI, or Very Long Baseline Interferometry, is a technique that uses multiple radio telescopes to very precisely measure the Earth's orientation. It was originally invented back in the 1960s to take better pictures of quasars, but...
Next Animation Studio
Quasars Can Trigger Tsunamis That Tear Across Galaxies And Snuff Out Star Formation
Quasar black holes emit radiation so powerful that they can prevent star formation in the surrounding galaxy, according to a study in the Astrophysical Journal Supplementary Letters.
Curated Video
Quasars: The Brightest Objects in Space
Learn all about quasars, extremely bright objects in outer space powered by black holes. This video explains how they were discovered, their connection to supermassive black holes, and their significance in understanding the early...
NASA
Hubble Detects a Rogue Supermassive Black Hole
The Hubble Space Telescope captured an image of a quasar named 3C 186 that is offset from the center of its galaxy. Astronomers hypothesize that this supermassive black hole was jettisoned from the center of its galaxy by the recoil from...
NASA
NASA | Using Quasars to Measure the Earth: A Brief History of VLBI
VLBI, or Very Long Baseline Interferometry, is a technique that uses multiple radio telescopes to very precisely measure the Earth's orientation. It was originally invented back in the 1960s to take better pictures of quasars, but...
Professor Dave Explains
Quasars and Early Galaxy Formation
One type of object that some astronomers study is called a quasar. When these were first discovered, it was a bit confusing as to precisely what they are, which is why quasar stands for quasi-stellar object, since we thought they looked...
Curated Video
USA: NASA: IMAGES TAKEN BY HUBBLE SPACE TELESCOPE UNVEILED
English/Nat
NASA scientists in the United States have unveiled a new series of images taken by the Hubble space telescope - that have offered tantalising glimpses of quasars.
As the scientists have discovered, the new images raise more...
Khan Academy
Khan Academy: Quasars and Galactive Collisions: Quasar Correction
Sal Khan offers a correction to his Quasar video. [1:45]