Explanation

The Large High Altitude Air Shower Observatory, the biggest device of its kind, has detected a dozen sources of ultra-high-energy gamma rays.

According to a study in the journal Nature, Gamma rays with such high energy have never been detected before in our Milky Way galaxy.

More than 530 photons at energies above 100 teraelectronvolts and up to 1.4 PeV were detected.

Explanation

The stratosphere is rich in Ozone.

The rest of the layers might have ozone to a small extent but not to large extent.

Explanation

Explanation

In 1955, Xinjiang was administratively changed from a province into an autonomous region.

Sinkiang Province was a province of the Republic of China

Explanation

Academy award/Oscar award 2021

Edition: 93rd  

Date: 25 March 2021

Venue: Dolly Theater, Los Angeles (USA)

Best Director: Chloe Zhao (China)

Oscar Award is given by the US Academy of Motion Picture arts & Sciences

First Oscar: 16 May 1929

Explanation

It emerged in China.

This virus come from culex mosquitoes and pigs خنزیر. 

Explanation

China successfully launched a new Earth observation satelite 'Gaofen-3' on 7 April 2022.

Explanation

 China became the world's largest while India the second largest producer of crude steel.

Explanation

China launched the CR450, the fastest high-speed train, reaching 450 km/h in tests and 400 km/h commercially.

It improves on the CR400 Fuxing, featuring advanced technology for speed, energy efficiency, and passenger comfort.

The train supports China’s goal to expand its rail network to 70,000 km by 2035.

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Explanation

Pony Ma became the richest man of China in June 2020.