Manas National Park and Tiger Reserve
Why in News: Assam’s Manas National Park and Tiger Reserve is set to reopen for tourists after the conclusion of the monsoon closure period, as required by the Government of India.
About Manas National Park and Tiger Reserve
- Location: Situated in the foothills of the Himalayas in Assam, it is adjacent to the Royal Manas National Park in Bhutan.
- Significance: The park holds the unique status of being a Natural World Heritage Site, a Tiger Reserve, an Elephant Reserve, a Biosphere Reserve, and an Important Bird Area.
- Project Tiger: Manas was one of the first reserves included in the tiger reserve network established under Project Tiger in 1973.
- Conservation Landscape: It is part of a larger tiger conservation area that includes the Buxa, Nameri, Pakke, and Namdapha tiger reserves, as well as protected areas in Bhutan and Myanmar.
- Etymology: The park is named after the Manas River, which derives its name from the serpent goddess Manasa. The Manas River is a significant tributary of the Brahmaputra River and flows through the park.
- Flora: The vegetation includes Sal (Shorea robusta), scrub forests, old plantations (in buffer areas), semi-evergreen and mixed deciduous forests, along with grasslands and riparian vegetation in the core area.
- Fauna: The park is renowned for its rare and endangered endemic wildlife, such as the Hispid Hare, Pygmy Hog, Golden Langur, Indian Rhinoceros, and Asiatic Buffalo.
KH-22 Cruise Missile
Why in News: Russian Aerospace Forces’ Tu-22M3 missile carriers recently targeted Snake Island in the Black Sea using Kh-22 cruise missiles.
About KH-22 Cruise Missile
The KH-22 is a Soviet-era long-range, airborne supersonic cruise missile, also known by its NATO reporting name, AS-4 ‘Kitchen.’
- Development: Developed in the USSR during the 1960s, it was specifically designed for launch from Tupolev-22 bombers.
- Primary Purpose: The missile is intended mainly for targeting large naval vessels, such as aircraft carriers, and can carry either conventional or nuclear warheads.
Specifications:
Speed: Up to Mach 4.6
Range: Approximately 600 kilometers
Weight: 5,820 kilograms
- Production History: Around 3,000 KH-22 missiles were produced in the USSR. After the USSR’s dissolution, many remained in Ukraine, which later relinquished its nuclear and strategic aviation arsenal post-independence in 1991.
- Transfer to Russia: In 2000, Ukraine transferred 386 KH-22 missiles to Russia as part of a settlement for gas debt.
- Successor: The KH-22 was succeeded by the KH-32, designed for the newer Russian Tu-22M3M bombers. The KH-32 features a conventional warhead, an upgraded rocket motor, and a new radar imaging terminal seeker, offering a longer range but with a smaller warhead.
Three Gorges Dam
Why in News: NASA scientists have indicated that China’s largest hydroelectric project, the “Three Gorges Dam,” is moving substantial volumes of water, which is influencing the Earth’s rotation.
About Three Gorges Dam
- Location: Situated on the Yangtze River in Hubei Province, China.
- Capacity: It is the largest hydroelectric power station globally.
- Completion: The dam was finished in 2012 after nearly 20 years of construction.
- Dimensions: It measures 2,335 meters (7,660 feet) in length and 185 meters (607 feet) in height, making it the largest dam ever constructed.
- Reservoir Capacity: Holds 40 cubic kilometers (around 10 trillion gallons) of water, capable of generating up to 22,500 megawatts of electricity.
- Functionality: Utilizes water flow from the nearby Qutangxia, Wuxia, and Xilingxia gorges to spin turbines for electricity generation.
- Additional Purposes: Aims to enhance shipping capacity on the Yangtze River and mitigate flooding downstream by offering flood storage.
Active Galactic Nucleus (AGN)
Why in News: Researchers at the Indian Institute of Astrophysics (IIA) have recently discovered evidence of an interaction between a radio jet produced by Active Galactic Nuclei (AGN) and the surrounding interstellar medium.
About Active Galactic Nucleus (AGN):
- Definition: An AGN is a highly luminous central region of a galaxy, primarily illuminated by light emitted from dust and gas as it falls into a black hole.
- Brightness: The intense brightness of the central region can outshine the rest of the galaxy.
- Radiation Spectrum: AGNs emit radiation across the entire electromagnetic spectrum, from radio waves to gamma rays.
- Source of Radiation: This radiation is generated by a central supermassive black hole consuming nearby material.
- Active Galaxies: Galaxies that host an AGN are referred to as “active galaxies.”
- Luminosity: AGNs are the most luminous and persistent sources of electromagnetic radiation in the universe, making them valuable for discovering distant objects.
- Classification: Astronomers categorize different types of AGNs based on their observed characteristics.
- Quasars: The most powerful AGNs are known as quasars, which feature extremely bright galactic centers.
- Blazars: A blazar is a specific type of AGN that has a jet of light and energy directed towards Earth.