Next Animation Studio
Alien megastructures could be harnessing the energy of black holes, say scientists
Scientists are considering whether Dyson Spheres, hypothetical megastructures built to surround stars and harness their energy for alien civilizations, could also be built around black holes.
NASA
NASA | Swift Finds 'Missing' Active Galaxies
Most large galaxies contain a giant central black hole. In an active galaxy, matter falling toward the supermassive black hole powers high-energy emissions so intense that two classes of active galaxies, quasars and blazars, rank as the...
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...
NASA
NASA | Our Violent Universe
Our universe is more than a serene landscape of stars--it is teeming with activity from some extremely violent events. In a presentation at the IMAX theatre at the Smithsonian National Air and Space Museum in Washington, D.C. on...
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
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...
TMW Media
The Very Large Array Telescope: The purpose and characteristics of the VLA
What is the purpose of the VLA? What astronomical objects do they observe? Why was the VLA renamed Carl G. Jansky Very Large Array? What are the characteristics of the antenna? The Very Large Array Telescope, Part 1
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...
Curated Video
RR0208/C Chile: Observatory
Cerro Tololo Observatory, Vicuna, Chile (Recent) File: space shuttle launch, Hubble space telescope, Galileo, Constellation Leo animation (File), Cerro Tololo Observatory mountain, Equi River valley, SOT, Malcolm Smith, Observatory, SOT,...
Khan Academy
Khan Academy: Quasars and Galactive Collisions: Quasars
Discusses what quasars are, how they behave, where they are found, and how we observe them. [9:15]
Khan Academy
Khan Academy: Quasars and Galactive Collisions: Quasar Correction
Sal Khan offers a correction to his Quasar video. [1:45]
Khan Academy
Khan Academy: Quasars and Galactive Collisions: Quasars
Looks at quasars, which are the active nuclei of galaxies. [9:15]
Science Friday Initiative
Science Friday: Colossal Quasar Clump Too Huge to Exist, in Theory
Astronomers have discovered a clump of 73 quasars spanning four billion light years at its widest point -- that's like 40,000 Milky Way galaxies lined end-to-end.