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First image of black hole at the heart of our galaxy

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Astronomers from Event Horizon Telescope (EHT) Collaboration have unveiled an image of a supermassive black hole at the centre of our own Milky Way galaxy

Pictured for the very first time, the gargantuan black hole that lives at the centre of our galaxy provides valuable insight into the workings of such giants, which are thought to exist at the centre of most galaxies.

Scientists had previously seen stars orbiting around a massive, invisible, and compact object, resembling a black hole and this image provides the first direct visual evidence of it.

At an approximate distance of 27,000 light years from Earth, Sagittarius A* (Sgr A*, pronounced “sadge-ay-star”) appears to us to be the same size in the sky as a donut on the moon.

To image it, the global research team created the powerful EHT, which linked together eight existing radio observatories across the planet to form a single “Earth-sized” virtual telescope.

Although it is not possible to see the black hole itself, as it is completely dark, the glowing gas around it reveals a dark central region (called a “shadow”) surrounded by a bright ring-like structure.

The new view captures light bent by the powerful gravity of the black hole, which is four million times more massive than the Sun.

“We were stunned by how well the size of the ring agreed with predictions from Einstein’s Theory of General Relativity,” says EHT Project Scientist Geoffrey Bower from the Institute of Astronomy and Astrophysics, Academia Sinica, Taipei.

“These unprecedented observations have greatly improved our understanding of what happens at the very centre of our galaxy, and offer new insights on how these giant black holes interact with their surroundings.”

The EHT observed Sgr A* on multiple nights, collecting data for many hours in a row, similar to using a long exposure time on a camera.

The breakthrough follows the EHT 2019 collaboration’s release of the first image of a black hole called M87*, at the centre of the more distant Messier 87 galaxy.

Ticker News: Danaya Malenda contributed to this report.

Business

Amazon halts hiring on all corporate roles

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E-commerce giant is the latest of many to close all corporate job openings due to economic concern

Amazon is pressing pause on corporate hiring for the rest of the year, as economic concerns continue to grow.

The tech giant has instructed all recruiters to close all current corporate job openings… worldwide.

This means more that ten thousand openings will be closed as of Monday evening.

The job postings that will affected include technology positions, in store and online retail businesses, and logistics operations.

However, Amazon spokesman, Brad Glasser, says the company will still continue to have a significant number of other roles open.

He says, “we have many different businesses at various stages of evolution, and we expect to keep adjusting our hiring strategies in each of these businesses at various junctures.”

The freeze sees Amazon joining Meta, Apple, and Google, who have also announced a reduction or temporary pause on hiring.

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Business

What is Elon Musk’s “everything app”?

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elon musk twitter

Elon Musk’s Twitter deal is back on, and he says it’s the key to creating his much-anticipated ‘everything app’.

The billionaire entrepreneur had been in talks to take the social media platform private, but the deal fell through. However, after news of its reinstatement, Mr Musk said that buying Twitter is an essential part of his plans for X.

The idea behind X is a sort of super app, combining messaging, social media, payments-and lack of reliance on ad revenue, similar to the Chinese WeChat. That already has more than one billion users, but so far no equivalent exists in the West.

With Twitter under his belt, Musk believes he can make X a reality much sooner than originally planned. “It’s brought forward our X project by three to five years, but I could be wrong,” he said.

There are no further details on the X project at this time, but with Musk’s track record of visionary innovation, it’s sure to be something we’re all talking about in the near future.

Why does Elon Musk want to buy Twitter?

Elon Musk is known for his ambitious plans and big ideas, so it’s no surprise that he sees Twitter as a key piece of the puzzle for his next project, X.

The details of the deal have not been made public, but it is thought that Musk is paying a premium for Twitter.

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Business

Elon Musk’s stunning u-turn on Twitter deal

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Billionaire and Tesla CEO Elon Musk has agreed to proceed with his 44 billion dollar takeover of Twitter

In a letter to the social media giant, Musk says he will pay the price he agreed to months ago before he tried to backflip on the deal.

This announcement comes just weeks before the two parties were due to appear in court, with Twitter execs furious over Musk’s attempt to walk away.

Musk says he intends to move ahead with the deal and, pending financing, has requested the legal fight is brought to a halt.

Twitter shares have shot through the roof off the back of this news, soaring 22 per cent before trading was paused.

In April, Musk agreed to buy the social media giant for $54.20 a share, which brings the total price to roughly 44 billion.

Taking to Twitter at the time to announce his intentions, he said he wanted to clean up the platform and champion free speech.

But of course just a few weeks later, he bailed, leaving Twitter in the lurch.

Musk claimed the network had a whole lot more fake accounts than execs were leading on… hence his decision to back away.

Twitter staunchly denied these claims and commenced legal proceedings.

But here we are back at square one and for now at least, it seems like the deal is going to happen.

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