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Chinese Researchers Spot Monster Black Hole Bigger Than Sun

Chinese team spots monster black hole which is 70 times bigger than Sun

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Black Hole
A team of Chinese scientists spotted a black hole that is 70 times larger than the sun. (Representational Image Only). Wikimedia Commons

A team led by Chinese researchers has spotted a monster black hole with a mass 70 times greater than Sun — toppling the earlier assumption that the mass of an individual black hole in our Galaxy is no more than 20 times that of Sun.

Our Milky Way Galaxy is estimated to contain 100 million stellar black holes — cosmic bodies formed by the collapse of massive stars and so dense even light can’t escape.

The team, headed by Professor LIU Jifeng of the National Astronomical Observatory of China of the Chinese Academy of Sciences (NAOC), spotted a stellar black hole with a mass 70 times greater than the Sun.

The monster black hole is located 15 thousand light-years from Earth and has been named “LB-1” by the researchers in a paper reported in the journal Nature.

“Black holes of such mass should not even exist in our Galaxy, according to most of the current models of stellar evolution,” said LIU.

“We thought that very massive stars with the chemical composition typical of our Galaxy must shed most of their gas in powerful stellar winds, as they approach the end of their life. Therefore, they should not leave behind such a massive remnant,” he explained.

Spotting black hole
The monster black hole is located 15 thousand light-years from Earth. (Representational Image Only). Wikimedia Commons

Until just a few years ago, stellar black holes could only be discovered when they gobbled up gas from a companion star.

The vast majority of stellar black holes in our Galaxy are not engaged in a cosmic banquet, though, and thus don’t emit revealing X-rays.

As a result, only about two dozen Galactic stellar black holes have been well identified and measured.

To counter this limitation, LIU and collaborators surveyed the sky with China’s Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST).

After the initial discovery, the world’s largest optical telescopes – Spain’s 10.4-m Gran Telescopio Canarias and the 10-m Keck I telescope in the US – were used to determine the system’s physical parameters.
The results were nothing short of fantastic: a star eight times heavier than the Sun was seen orbiting a 70-solar-mass black hole, every 79 days.

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The direct sighting of LB-1 proves that this population of over-massive stellar black holes exists even in our own backyard.

“This discovery forces us to re-examine our models of how stellar-mass black holes form,” said LIGO Director Professor David Reitze from University of Florida in the US. (IANS)

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Robot Equipped with Emotion-Sensing Heads to International Space Station

Emotion-sensing Robot Heads to Space Station to Help Astronauts

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Robot
Bret Greenstein, IBM Global Vice President of Watson Internet of Things Offerings, holds a clone of an artificial intelligence bot named CIMON, at the Kennedy Space Center in Florida. VOA

An intelligent robot equipped with emotion-sensing voice detectors was headed to the International Space Station after launching from Florida on Thursday, becoming the latest artificial intelligence-powered astronaut workmate in orbit.

The Crew Interactive Mobile Companion 2, or CIMON 2, is a spherical droid with microphones, cameras and a slew of software to enable emotion recognition.

The droid was among 5,700 pounds (2,585 kg) of supplies and experiments aboard SpaceX’s Falcon 9 rocket, whose midday launch had been delayed from Wednesday because of high winds.

Create a companion

“The overall goal is to really create a true companion. The relationship between an astronaut and CIMON is really important,” Matthias Biniok, the lead architect for CIMON 2, told Reuters. “It’s trying to understand if the astronaut is sad, is he angry, joyful and so on.”

Based on algorithms built by information technology giant IBM Corp and data from CIMON 1, a nearly identical prototype that launched in 2018, CIMON 2 will be more sociable with crew members. It will test technologies that could prove crucial for future crewed missions in deep space, where long-term isolation and communication lags to Earth pose risks to astronauts’ mental health.

Robot companion
The overall goal of creating this robot is to create a true companion. (Representational Image). Lifetime Stock

While designed to help astronauts conduct scientific experiments, the English-speaking robot is also being trained to help mitigate groupthink — a behavioral phenomenon in which isolated groups of humans can be driven to make irrational decisions.

“Group-thinking is really dangerous,” Biniok said. In times of conflict or disagreement among astronauts, one of CIMON’s most important purposes would be to serve as “an objective outsider that you can talk to if you’re alone, or could actually help let the group collaborate again,” he said.

Inspired by Professor Simon, HAL

Engineers have said CIMON’s concept was inspired by a 1940s science fiction comic series set in space, where a sentient, brain-shaped robot named Professor Simon mentors an astronaut named Captain Future. CIMON 2 also parallels HAL, the sentient computer in Stanley Kubrick’s “2001: A Space Odyssey” film.

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SpaceX is the first private company to fly to the space station, a $100 billion project of 15 nations. Along with CIMON 2, the cargo aboard its 19th resupply mission to the orbital research lab included 40 live mice that will show scientists how muscles change in the microgravity of space. (VOA)