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Scientists have discovered a sleeping black hole outside our Scientists have discovered a sleeping black hole outside our galaxy

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Scientists have discovered a sleeping black hole outside our galaxy for the first time. Its mass is nine times that of the Sun.

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An international team of astronomers has discovered an inactive stellar-mass black hole outside the Milky Way for the first time. The discovery was made during observations of large stars in the Large Magellanic Cloud, a satellite of our Galaxy.

Scientists have discovered a sleeping black hole outside our galaxy for the first time.  Its mass is nine times that of the Sun.

“We have spent more than two years searching for binary star systems that have a dormant black hole. I was very pleased when we discovered the VFTS 243 system, which is currently the most convincing candidate for the role of such an object. ”said European Southern Observatory (ESO) scientist Julia Bodensteiner.

Stellar-mass black holes, resulting from the gravitational collapse of large stars, are extremely difficult to detect even at a small distance from the Earth. Astronomers usually learn about their existence only if there is a luminary next to them, whose matter black holes are constantly dragging onto themselves. As a rule, such star systems are extremely rare in galaxies, which complicates the search for stellar-mass black holes.

Bodensteiner and her colleagues have discovered for the first time an extragalactic stellar system whose black hole almost does not pull the matter of its neighbor onto itself and does not show visible signs of activity in the X-ray frequency range. They made this discovery while observing several large stars in the Large Magellanic Cloud.

This galaxy hosts the so-called Tarantula Nebula, one of the youngest and largest star-forming regions in the immediate vicinity of the Milky Way. Inside this gas and dust cloud, large stars are constantly being formed, whose mass is tens and hundreds of times higher than the sun. Such large luminaries very quickly exhaust their reserves of hydrogen and turn into black holes.

Altogether, scientists have tracked thousands of stars in the Tarantula Nebula, hoping to find characteristic fluctuations in their spectrum structure and speed that would indicate the presence of an invisible and large satellite. The scientists detected the fluctuations while observing the star VFTS 243, which has about 25 times the mass of the Sun.

As astronomers have discovered, this luminary revolves around a “sleeping” black hole, whose mass is at least nine times higher than that of the Sun. Both components of the star system VFTS 243 are located at a small distance from each other, as a result of which the star makes a complete revolution around the black hole in just 11 incomplete days.

According to astronomers, the absence of visible traces of a supernova explosion in the VFTS 243 system and the large mass of the black hole indicate that it arose as a result of the direct gravitational collapse of a large star. This makes the black hole very interesting to study.

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20,000 mAh for $22. New Xiaomi external battery introduced

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20000 mAh for 22 New Xiaomi external battery introduced

Xiaomi has released a new power bank that offers impressive capacity at a modest price.

20,000 mAh for $22.  New Xiaomi external battery introduced

The novelty costs only $ 22, but it has a capacity of 20,000 mAh. There are also three USB ports for charging other devices. True, two of them are USB-A, and only one is USB-C, capable of delivering 22.5 watts of power.

To charge the battery itself, you can use both USB-C and micro-USB present here. Separately, it is worth highlighting the presence of a low-current charging function, which is suitable when connecting smart watches, headsets and other similar devices.

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Some motherboards will turn the Core i9-13900K into a power consumption monster. The power limit will increase to 350W

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Some motherboards will turn the Core i9 13900K into a power

Intel can make the Core i9-13900K even more attractive with a new auto-overclocking mode.

Some motherboards will turn the Core i9-13900K into a power consumption monster.  The power limit will increase to 350W

The source reports that some motherboards based on 700-series chipsets will allow you to activate an increased power limit. In this case, we are talking about a value of 350 watts. For comparison, Alder Lake has a maximum of 241 watts.

The values ​​of PL1 and PL2 for the new CPUs will hardly change and will amount to 125 and 253 W, respectively. But there will also be an opportunity to remove the limit, thanks to which the Core i9-13900K will be able to consume up to 350 watts. In this case, of course, the motherboard will need a powerful power supply subsystem, and the processor will need a productive CO.

CPU performance in this mode can increase by 15%, although this will depend on the tasks. Whether the Core i9-13900KS, which was previously assigned a frequency of up to 6 GHz, will be released under such conditions is now unclear.

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In 10 years, there will be about 70,000 satellites in Earth orbit.

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In 10 years there will be about 70000 satellites in

About 70,000 spacecraft could be in Earth orbit by 2032. Sergey Boev, chief designer of the missile attack warning system, general director of Vympel IAC, spoke about this within the framework of the Army-2022 forum.

In 10 years, there will be about 70,000 satellites in Earth orbit.

The population density of space objects is increasing, which creates a significant threat of collisions. Now the United States, the EU countries, China and India are announcing the creation of their own megagroups of hundreds and even thousands of devices. According to our forecasts, within 10 years, the constellation of satellites in low Earth orbit can increase to 70,000 operating spacecraft“, – he said.

Boev noted that such a number of functioning satellites will be accompanied by an abundance of space debris, which will greatly complicate the situation.

All this needs to be controlled. It is necessary to improve the capabilities of the domestic space control system, increase the domestic space constellation, create small-sized spacecraft and space control tools, and need the ability to exchange information with other systems“, – said Sergey Boev.

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