River Ranching: River Ranching is a form of aquaculture in which a population of a fish species (such as salmon) is held in captivity for the first stage of their lives. They are then released, and later harvested as adults when they return from the sea to their freshwater birthplace to spawn. In India River Ranching Programme is introduced as a special activity under Pradhan Mantri Matsya Sampada Yojana (PMMSY) for augmenting and enhancing fish production and productivity through expansion, intensification, diversification and productive utilisation of land and water. Department of Fisheries, Government of India, has designated the National Fisheries Development Board (NFDB), Hyderabad as the nodal agency under the Central sector component of PMMSY for implementing the programme across the country. Recently, over 10,000 fish fingerlings of Indian major carps — catla, rohu and mrigal — were released in the Ganga at Sangam nose under the ranching programme organised by ICAR-Central Inland Fisheries Research Institute (CIFRI), Prayagraj, recently. The exercise has been undertaken for conservation and promotion of fish species that are becoming extinct in the Ganga.
Gravitational Lensing: Gravitational lensing is an effect of Einstein’s theory of general relativity – simply put, mass bends light. The gravitational field of a massive object will extend far into space, and cause light rays passing close to that object (and thus through its gravitational field) to be bent and refocused somewhere else. The more massive the object, the stronger its gravitational field and hence the greater the bending of light rays – just like using denser materials to make optical lenses results in a greater amount of refraction. Gravitational lensing is useful to cosmologists because it is directly sensitive to the amount and distribution of dark matter.
Lucy Mission: NASA’s Lucy mission — set to explore a group of asteroids that follow behind and in front of Jupiter’s orbit. NASA will perform two steps over the next several months to fully reveal an unfurled solar array. This is NASA’s first mission to explore the Jupiter Trojan asteroids. It is a solar-powered mission. It is estimated to be over 12 years long, during the course of which the spacecraft will visit eight asteroids covering a distance of about 6.3 billion km to deepen the understanding of the “young solar system”.
Canine Distemper: The Gujarat Biotechnology Research Centre has developed and completed the first trials of the Canine Distemper Virus (CDV) vaccine for the Asiatic lion. Canine distemper is caused by the paramyxovirus virus and it spreads through body fluids like infected urine, blood and saliva. The virus attacks the respiratory, gastrointestinal and nervous systems of puppies and dogs and can be transmitted to lions, tigers, leopards and other wild cats as well as seals. There is no known cure for CDV.
TRACE Metaverse Token: Crypto trading platform Bitbns has listed the metaverse token ‘TRACE’ on its platform. It has become India’s first crypto exchange to list this token. Metaverse tokens are the currency used by people within the metaverse. Users can create, buy and sell goods as well as tokenized funds.