Blog

Archive for the ‘cosmology’ category: Page 330

Apr 15, 2019

DIY gravitational waves with ‘BlackHoles@Home’

Posted by in categories: computing, cosmology, physics

Researchers hoping to better interpret data from the detection of gravitational waves generated by the collision of binary black holes are turning to the public for help.

West Virginia University assistant professor Zachariah Etienne is leading what will soon become a global volunteer computing effort. The public will be invited to lend their own computers to help the unlock the secrets contained in observed when smash together.

LIGO’s first detection of gravitational waves from colliding black holes in 2015 opened a new window on the universe, enabling scientists to observe cosmic events spanning billions of years and to better understand the makeup of the Universe. For many scientists, the discovery also fueled expansion of efforts to more thoroughly test the theories that help explain how the universe works—with a particular focus on inferring as much information as possible about the black holes prior to their .

Continue reading “DIY gravitational waves with ‘BlackHoles@Home’” »

Apr 15, 2019

Black hole smashup generated yottawatts of power

Posted by in category: cosmology

For a split second, LIGO’s black hole collision generated 36 septillion yottawatts of power, or 50 times the power from all the stars in the universe.

Read more

Apr 15, 2019

Travel through wormholes is possible, but slow

Posted by in categories: cosmology, physics, space travel

A Harvard physicist has shown that wormholes can exist: tunnels in curved space-time, connecting two distant places, through which travel is possible.

But don’t pack your bags for a trip to other side of the galaxy yet; although it’s theoretically possible, it’s not useful for humans to through, said the author of the study, Daniel Jafferis, from Harvard University, written in collaboration with Ping Gao, also from Harvard and Aron Wall from Stanford University.

“It takes longer to get through these wormholes than to go directly, so they are not very useful for ,” Jafferis said. He will present his findings at the 2019 American Physical Society April Meeting in Denver.

Read more

Apr 12, 2019

At various places I have seen, or posted myself, posts about helping equal out gender representation in science and technology

Posted by in categories: cosmology, internet, science

An inevitable comment is usually something along the lines of women don’t need this kind of help because “insert foolish reason here.” The announcement of the black hole image shows just why this kind of action is needed.


The soon-to-be iconic picture of Katie Bouman reacting to the first image coming through was posted. Suddenly, the Internet trolls in defense of “male scientist” broke upon the scene, The goal to denigrate Bouman’s work on the project and turn the real “hero” of the discovery to another male scientists.

Read more

Apr 10, 2019

Event horizon shadow of supermassive black hole candidates are now possible via electromagnetic waves, thus transforming this elusive boundary from a mathematical concept to a physical entity that can be studied and tested via repeated astronomical observations

Posted by in categories: cosmology, mathematics

https://iopscience.iop.org/article/10.3847/2041-8213/ab0ec7

No photo description available.

Read more

Apr 10, 2019

Science fact: Astronomers reveal first image of a black hole

Posted by in categories: cosmology, science

WASHINGTON (AP) — Scientists on Wednesday revealed the first image ever made of a black hole, depicting a fiery ring of gravity-twisted light swirling around the edge of the abyss.

The picture, assembled from data gathered by eight radio telescopes around the world, shows the hot, shadowy lip of a supermassive black hole, one of the light-sucking monsters of the universe theorized by Einstein more than a century ago and confirmed by observations for decades. It is along this edge that light bends around itself in a cosmic funhouse effect.

“We have seen what we thought was unseeable. We have seen and taken a picture of a black hole,” Sheperd Doeleman of Harvard, leader of a team of about 200 scientists from 20 countries, announced as the colorized orange-and-black picture was unveiled.

Continue reading “Science fact: Astronomers reveal first image of a black hole” »

Apr 10, 2019

This is the first photo of a black hole

Posted by in category: cosmology

In April 2017, scientists used a global network of telescopes to see and capture the first-ever picture of a black hole, according to an announcement by researchers at the National Science Foundation Wednesday morning. They captured an image of the supermassive black hole and its shadow at the center of a galaxy known as M87.

This is the first direct visual evidence that black holes exist, the researchers said. In the image, a central dark region is encapsulated by a ring of light that looks brighter on one side.

The massive galaxy, called Messier 87 or M87, is near the Virgo galaxy cluster 55 million light-years from Earth. The supermassive black hole has a mass that is 6.5 billion times that of our sun.

Continue reading “This is the first photo of a black hole” »

Apr 10, 2019

Breakthrough discovery in astronomy: First Black Hole image

Posted by in categories: cosmology, innovation

https://www.youtube.com/watch?v=pl9kmx_M9QU

On 10 April 2019 at 15:00 CEST (Brussels time) the European Commission will present a ground-breaking discovery by Event Horizon Telescope — an international scientific collaboration aiming to capture the first image of a black hole by creating a virtual Earth-sized telescope. EU-funded researchers play a key role in the project.

Six press conferences around the world will take place simultaneously In Europe, Commissioner Moedas and lead scientists funded by the European Research Council will hold a press conference in Brussels to unveil the discovery.

Continue reading “Breakthrough discovery in astronomy: First Black Hole image” »

Apr 10, 2019

Live press conference on major black hole announcement from Event Horizon Telescope and the National Science Foundation

Posted by in categories: cosmology, science

Read more

Apr 10, 2019

Astronomers Capture First Image of a Black Hole

Posted by in categories: cosmology, innovation

The Event Horizon Telescope (EHT) — a planet-scale array of eight ground-based radio telescopes forged through international collaboration — was designed to capture images of a black hole. Today, in coordinated press conferences across the globe, EHT researchers reveal that they have succeeded, unveiling the first direct visual evidence of a supermassive black hole and its shadow.

This breakthrough was announced today in a series of six papers published in a special issue of The Astrophysical Journal Letters. The image reveals the black hole at the centre of Messier 87 [1], a massive galaxy in the nearby Virgo galaxy cluster. This black hole resides 55 million light-years from Earth and has a mass 6.5 billion times that of the Sun [2].

The EHT links telescopes around the globe to form an unprecedented Earth-sized virtual telescope [3]. The EHT offers scientists a new way to study the most extreme objects in the Universe predicted by Einstein’s general relativity during the centenary year of the historic experiment that first confirmed the theory [4].

Read more