Science & Technology Current Affairs MCQs

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Camp Hill virus, a henipavirus related to Nipah, has been detected in North America, raising outbreak concerns. Henipaviruses are zoonotic RNA viruses from the Paramyxoviridae family, naturally hosted by fruit bats (Pteropus species). They can cross species barriers, infecting mammals, including humans, causing severe respiratory illness and encephalitis. Transmission occurs through infected animals, contaminated food/water, and human-to-human contact. Symptoms range from fever and headache to severe encephalitis, seizures, and coma. Henipaviruses block the innate immune response, aiding viral replication. No vaccine or antiviral drug is available; treatment is only symptomatic.

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United States (US) Food and Drug Administration (FDA) has approved Suzetrigine, a new non-opioid painkiller. Opioids are drugs derived from the opium poppy plant or designed to mimic them. Examples include oxycodone, morphine, codeine, heroin, and fentanyl. They bind to opioid receptors in the brain, blocking pain signals and creating euphoric sensations. While effective for pain relief, opioids carry a high risk of addiction and dependence. Suzetrigine offers an alternative to opioids, reducing the risk of opioid addiction.

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Researchers have developed a self-actuating drug delivery system for rheumatoid arthritis (RA). It releases therapeutic agents only when needed by targeting inflammation in joints. RA is an autoimmune disease that attacks healthy cells, mainly affecting joints in hands, wrists, and knees. Symptoms include chronic pain, joint damage, unsteadiness, and deformity; it can also affect organs like the lungs, heart, and eyes. The system uses microspheres loaded with methotrexate, a common anti-rheumatic drug. It includes polymer-lipid hybrid micro-composites, ensuring high drug efficiency and responsiveness to inflammation-related enzymes.

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Astronomers discovered Gaia BH3, a massive black hole close to Earth, using the European Space Agency’s (ESA) Gaia telescope. Gaia Mission, launched in 2013, aims to create the most precise 3D map of the Milky Way, surveying 1% of its 100 billion stars. It orbits the Sun at Lagrange Point 2 (1.5 million km from Earth), avoiding atmospheric distortion. Gaia scans the sky every two months using two telescopes. It helps detect exoplanets, main belt asteroids, and Near-Earth Objects (NEOs) by tracking stellar movements and brightness changes.

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The Blue Ghost Lander is developed by Firefly Aerospace for lunar exploration. It will deliver scientific payloads to the Moon under NASA’s Artemis Program. The lander supports NASA’s Lunar Surface Operations Program for sustainable human exploration. It marks a significant step in private sector involvement in space missions. The mission aims to advance lunar research and exploration efforts.

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Russia has offered India the R-37M missile, one of the world’s best air-to-air missiles. It was developed by Russia. The R-37M is designed to target enemy fighter jets and drones beyond visual range (BVR). It evolved from the R-33 missile and targets high-value platforms like tanker aircraft. Its guidance system includes inertial navigation, radar homing, and semi-active radar for the terminal phase. The missile has a range of 300-400 km and speeds up to Mach 6, making it highly effective for long-range interception.

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Engineers in Japan activated Reimei, the world’s first hybrid quantum supercomputer. It features a 20-qubit quantum processor integrated into Fugaku, the world’s sixth-fastest supercomputer. Unlike most quantum computers, Reimei uses trapped-ion qubits, which isolate charged atoms in an electromagnetic ion trap and use lasers for precise control. This hybrid system aims to handle complex calculations beyond traditional supercomputers. It is expected to advance research in physics and chemistry.

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Jharkhand health department issued a bird flu (H5N1) alert after detection at Birsa Agricultural University, Ranchi. Bird flu (Avian Influenza) is caused by Influenza A viruses and can spread from birds to humans. H5N1, H7N9, H5N6, and H9N2 are key virus strains, with H5N1 known for high fatality. Transmission occurs through infected birds, airborne particles, contaminated surfaces, and animal products.

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A study identified 24-hydroxycholesterol (24-OHC), a cholesterol metabolite, as a key factor in Parkinson’s disease progression. Parkinson’s disease (PD) is a progressive neurodegenerative disorder affecting movement. It weakens and damages nerve cells, leading to tremors, stiffness, and balance issues. As it worsens, patients struggle with walking, talking, and daily tasks. The disease mainly affects the substantia nigra, a brain region producing dopamine.

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John McFall has become the first person with a physical disability to be medically certified for a long-duration mission to the International Space Station (ISS). The European Space Agency (ESA) approved his selection, marking a historic milestone in inclusive space exploration. McFall, a former Paralympian, lost his right leg at 19 in a motorcycle accident. He won bronze in the 100m sprint at the 2008 Beijing Paralympics.