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Archive for the ‘cosmology’ category: Page 7

May 13, 2022

Gravitational Wave Scientists Pioneer New Laser Mode Sensor With Unprecedented Precision

Posted by in categories: cosmology, physics

Lasers support certain structures of light known as “eigenmodes.” An international collaboration of experts in gravitational waves.

Gravitational waves are distortions or ripples in the fabric of space and time. They were first detected in 2015 by the Advanced LIGO detectors and are produced by catastrophic events such as colliding black holes, supernovae, or merging neutron stars.

May 12, 2022

Astronomers reveal first image of the black hole at the heart of our galaxy

Posted by in category: cosmology

May 12, 2022

Sagittarius A* black hole pictured, proving Einstein right 100+ years on

Posted by in category: cosmology

The supermassive black hole, which weighs as much as 4.3 million suns, is only the second ever to be imaged.

May 12, 2022

Groundbreaking Milky Way Results From the Event Horizon Telescope Collaboration — Watch Live

Posted by in category: cosmology

Update: Meet Sagittarius A — Astronomers Reveal First Image of the Black Hole at the Heart of the Milky Way Today (May 12, 2022) at 9:00 a.m. EDT (6:00 a.m. PDT, 15:00 CEST) The European Southern Observatory (ESO) and the Event Horizon Telescope (EHT) project will hold a press conference to pres.


Update: Stunning Reveal: First Image of the Black Hole at the Center of Our Milky Way Galaxy

Continue reading “Groundbreaking Milky Way Results From the Event Horizon Telescope Collaboration — Watch Live” »

May 12, 2022

Black hole at heart of our galaxy pictured for first time

Posted by in category: cosmology

Astronomers reveal the first ever image of the black hole at the core of our galaxy.

May 12, 2022

Black hole: First picture of Milky Way monster

Posted by in category: cosmology

Astronomers reveal the first ever image of the black hole at the core of our galaxy.

May 11, 2022

Measuring a Black Hole Shadow

Posted by in categories: cosmology, robotics/AI

A new technique for measuring the shadows cast by a black hole binary could enable astronomers to glean details about these massive systems.


During its first keynote at Google I/O 2022, Google detailed its latest language model, LaMDA 2, and an app called AI Test Kitchen.

May 11, 2022

NASA released new audio approximating the sound of two black holes on May 4th

Posted by in category: cosmology

The above video approximates noise from the black hole at the center of the Perseus galaxy cluster, which experts discovered had a pitch over a “million billion times deeper” than the limits of human hearing, making it too deep to be heard.

May 11, 2022

Black Holes and the Quantum-Extended Church-Turing Thesis | Quantum Colloquium

Posted by in categories: computing, cosmology, quantum physics

Leonard Susskind (Stanford University)
https://simons.berkeley.edu/events/quantum-colloquium-black-…ing-thesis.
Quantum Colloquium.

A few years ago three computer scientists named Adam Bouland, Bill Fefferman, and Umesh Vazirani, wrote a paper that promises to radically change the way we think about the interiors of black holes. Inspired by their paper I will explain how black holes threaten the QECTT, and how the properties of horizons rescue the thesis, and eventually make predictions for the complexity of extracting information from behind the black hole horizon. I’ll try my best to explain enough about black holes to keep the lecture self contained.

Continue reading “Black Holes and the Quantum-Extended Church-Turing Thesis | Quantum Colloquium” »

May 9, 2022

See the grand design of spiral galaxy M99 in Hubble image

Posted by in category: cosmology

The swirling spiral of the elegant galaxy M99 is on display in this week’s image from the Hubble Space Telescope. As a prototypical spiral galaxy, like our Milky Way, M99 has the classical rotating disk of stars, gas, and dust, which is concentrated and bright in the center and reaches out into space with spiral arms. But his particular galaxy isn’t just any spiral galaxy — it is a “grand design” spiral galaxy, a classification given to the neatest and most orderly spiral galaxies whose arms are particularly prominent and well-defined.

The galaxy M99 is located in the constellation of Coma Berenices and is around 42 million light-years from Earth. As well as being visually stunning, this galaxy is an interesting target of research and has been imaged by Hubble’s Wide Field Camera 3 instrument twice, for two different research projects.

The first project M99 was observed for is one which looked at the difference between two types of explosions that can occur at the end of a star’s life: Novae and supernovae. Supernovae are the more dramatic, famous events, in which massive stars run out of fuel and explode in huge, bright events which can send out shockwaves and leave behind distinctive remnants. The less famous novae are dimmer events that happen when white dwarfs in a binary system with a larger star suck off layers of matter from that star’s outer shell.

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