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Why can’t astronomers find some asteroids approaching Earth?

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Astronomers did not notice the asteroid 2021 SG, which was closest to Earth on September 17, and did not detect it until it fell directly near Earth, i.e. 240,000 km away.

This is less than the distance that separates the Moon from the Earth.

This was acknowledged by Paul Chots, NASA’s Director of Space Exploration. Why did it happen? – Because, 2021 S.G.

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International scientists are solving the mystery of my city’s catastrophe

Scientists believe that its length is not more than 94 meters and its width is not less than 42 meters. But his speed reached 68 thousand kilometers per hour. If this asteroid fell on Canadian soil, it would have caused severe damage. Just as an asteroid crashed in the cities of Sodom and Gomorrah 3,600 years ago and killed 8,000 people, it would have caused a local tragedy if it had fallen on a Canadian city.

The asteroid orbits the Earth once every 27 months.

Last year meteorologists did not notice the 10-diameter meteorite 2020 VT4, which approached Earth at a distance of 380 km and flew over the British Pitcairn Islands in the South Pacific. It had to collide with the International Space Station, flying at an altitude of 340 to 430 km. Fortunately, the station was located in an area of ​​the South Atlantic.

Also in 2018, astronomers observed the 20-meter-diameter asteroid 2009 FH, the day before the dangerous approach to Earth. The asteroid flew at an altitude of satellites (32,000 km).

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And all these meteorites, the asteroid “Chelyabinsk” that fell in the Ural region of Russia, came from the direction of the sun, so it is difficult for astronomers to find them.

Humanity is still threatened until 2026, when the NASA NEO Surveyor space telescope operates infrared, which can detect dangerous asteroids coming in day and night, millions of kilometers away from the sun.

Source: Komsomolskaya Pravda

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What’s the difference? Notable Differences Between iPhone 12 Mini and iPhone SE 2020

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What’s the difference?  Notable Differences Between iPhone 12 Mini and iPhone SE 2020


Written by Sama Labib

Thursday, 7th December, 2023 at 05:00 AM

Apple released a series of iPhone 12 About two years ago, it was a phone iPhone 12 mini From Apple, this is one of the most important phones launched, as it includes a group of improvements and upgrades, so below we will compare it one phone at a time. iPhone SE 2020as follows:

iPhone 12 mini

:

Screen: 5.4 inch screen.

Screen Type: Screen OLED.

Screen resolution: 2340 x 1080 pixels.

Processor: Processor A14 Bionic.

Internal Memory: 128GP.

OS: iOS (14.x) .

Battery: 2425 watts mAh.

Rear Camera: Dual 12 MP

Front Camera: 12 MP


iPhone SE 2020 phone

Operating System: The operating system iOS (13.x).

Screen Space: It comes with a 4.7-inch screen.

Screen resolution: 1334 x 750 pixels.

Screen Type: Screen IPS LCD.

Rear Camera: 12 MP rear camera.

Front Camera: 7 Mega Pixel.

Processor Type: Chipset Apple A13 Bionic APL1W85.

RAM: 3GP.

Maximum internal memory: 64 GB.

Battery: 1821 battery mAh.



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Samsung Galaxy S22 Ultra 256GB Premium Phone from Jarir Bookstore Saudi Arabia

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Samsung Galaxy S22 Ultra 256GB Premium Phone from Jarir Bookstore Saudi Arabia

Samsung Galaxy S 22 Ultra mobile phone has many features and capabilities like battery that supports fast charging and wireless charging features and it can last long during the day, so in this article we explain the most important conditions for installment of Samsung Jarir Saudi Arabia Mobile Phone, Galaxy S22 Ultra Edition.

Samsung Mobile Installments, Jarir Saudi Arabia

Samsung Jarir Saudi Arabia mobile installment terms include:

  • Customer must be at least 18 or 21 years of age, depending on the financing or installment party and value of purchases.

  • Customer must be registered on Absher site.

  • The customer’s phone number is registered in his Afsher account.

  • He must have paid all the dues and installments recorded while submitting the installment claim.

read more: Online mobile phone installment offers from Zareer Saudi Arabia without visiting branches

Interest Free Installments for Samsung Zareer Mobile Phone

Samsung Mobile Installments, Jarir Saudi Arabia

The Samsung Jarir Saudi Arabia mobile phone can be paid in interest-free installments through Tamara under the following conditions in addition to the conditions mentioned above:

  • Applicant must be at least 21 years of age.

  • Purchase service fee of 199 Saudi Riyals.

read more: Conditions for Purchase of Mobile Phone on Installment from Zareer through Tamara platform and required documents

Samsung mobile phone installment Jarir Tamara

To install Samsung mobile phone in Jarir Saudi Arabia via Tamara, you need to follow the following steps:

  • Clicks Here Enter the link to buy Samsung Galaxy S22 Ultra phone currently available at Jarir Bookstore in Saudi Arabia.

  • Click the Add to Cart button.

  • Determine payment method via Tamara.

  • Fill the required data.

  • Pay the first installment of the phone price along with the purchase service charge.

Mobile phone installments

Features of Samsung Galaxy S22 Ultra Phone Currently Available in Jarir Saudi Arabia:

  • Internal Capacity: 512 GB.

  • 12 GB RAM size.

  • Available in cream.

  • Supports 5G communication networks.

  • Processor Type: Snapdragon 8 Gen2.

  • The screen size is 6.8 inches.

  • Battery capacity is 5000 mAh.

  • It runs on Android 13 operating system.

  • Available with Wi-Fi and Bluetooth features.

  • There are two slots for two SIM cards.

  • Supports Nano SIM cards.

  • Battery Type: Lithium-Ion.

  • Supports wireless and wired charging.

  • Flash available.

  • Screen Protector Type: Gorilla Glass Victus 2.

Samsung S22 Ultra Price

Samsung Galaxy S22 Ultra phone price goes up to 3,912 Saudi Riyals instead of 4,955 Saudi Riyals in Jarir, Saudi Arabia, while supplies last.

The website comes with a free gift worth 99 Saudi Riyals along with the phone, a black Samsung phone equipped with a wall charger, single USB-C and super fast charging feature.

Samsung Mobile Phone, Tamara Installments

The number of installments for Samsung Galaxy S22 Ultra phone on Jarir Saudi Arabia website via Tamara reaches 4 consecutive monthly installments, each installment worth 1179.5 Saudi Riyals.

S22 Ultra in Interest Free Installments

No interest or processing fees on installment payments for Samsung Galaxy S22 Ultra from Zareer Saudi Arabia through Tamara.

How does the installment system work?

Through an installment company or financial party on the site where you wish to purchase an item on installments.

How many months is zareer term?

Samsung Galaxy S22 Ultra 4 months in a row via Tamara.

Samsung S22 Ultra Dual SIM?

Yes, it supports Nano SIM.

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Discovery of water in a space disk

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Discovery of water in a space disk

Shafagna – The James Webb Space Telescope (JWST) has detected water in the inner region of planet-forming gas and dust surrounding a newborn star.

The discovery is important because water, along with other molecules needed to form Earth-like worlds, is near many young, massive stars that produce intense ultraviolet radiation.

Such extreme environments were previously thought to be unsuitable for rocky planets to form, but the new discovery suggests that Earth-like planets can form in a wider range of cosmic environments than previously thought.

The results could help scientists better understand how the Solar System’s planets formed about 4.5 billion years ago.

The research also represents the first results from JWST’s Extreme Ultraviolet Environments (XUE) project, which aims to characterize the environments and chemistry of massive rotating disks of dust, gas and rock around young stars. and comets.

Team leader María Claudia Ramírez-Danos, a scientist at the Max Planck Institute for Astronomy in Germany, said: “The James Webb Space Telescope is the only space telescope with the spatial resolution and sensitivity to study planet-forming disks in regions of massive stars. Formation.”

The first results of XUE come from observations of a protoplanetary disk called XUE 1, located in the star cluster Bismis 24.

XUE 1 is one of 15 protoplanetary disks in NGC 6357 that are being studied as part of the XUE project.

The team expected the observations to show that XUE 1 had been exposed to high levels of ultraviolet radiation, but they were surprised to find that the protoplanetary disk was filled with tiny, partially crystallized silicate dust.

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The researchers found traces of molecules such as carbon monoxide, carbon dioxide, hydrogen cyanide and acetylene.

“XUE1 shows that the necessary conditions exist for rocky planets to form, so the next step is to check how common this is,” Ramírez-Danos said. “We will monitor other discs in the same area to determine the frequency with which these conditions are seen.”

Details of the discovery have been published in The Astrophysical Journal Letters.

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