Explanation

China has successfully completed the construction of the Tianshan Shengli Tunnel, which is now recognized as the world's longest Expressway Tunnel. 

The Tianshan Shengli Tunnel holds the record as the longest expressway in the world, stretching over 300 kilometers. 

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Explanation

In January 2025, Bangladesh decided to remove the word "Secularism" from its constitution.

The change is part of a broader shift towards emphasizing the role of Islam in the country's governance, while still recognizing Islam as the state religion.

Secularism was included in the Bangladeshi constitution after the country's separation from Pakistan in 1971, as one of its founding principles, aiming to establish a state that was neutral towards religion. 

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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

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

Russia successfully launched its Angara A5 space rocket from the Vostochny Cosmodrome.

Launched in 2024.

Russia successfully put a test load in low orbit as part of an effort to develop a new post-Soviet launch vehicle.

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