Science Alert
Catch up on the latest science news, from space and technology to life and environmental research- all the discoveries shaping our world today.
Updated: 2 hours 3 min ago
Freezing liquid inside optical fibre makes light and sound interact 1,000 times more strongly
Scientists have frozen the liquid inside a special optical fibre to -196°C, creating conditions where light and sound interact more than 1,000 times more strongly than in ordinary fibres. The team found that the frozen fibre could still guide light and hypersonic sound waves. The breakthrough also helped researchers demonstrate optoacoustic memory, which could have potential applications in lower-energy photonic computing, quantum information processing and high-precision sensing.
Henderson Island rats survived a 75-tonne poison campaign and rebounded within two years
Conservationists attempted a large-scale rat eradication on Henderson Island in 2011. About seventy-five tonnes of poisoned bait were spread across the remote South Pacific island. However, a small number of rats survived the intensive campaign. Within two years, the rat population had recovered significantly to former levels. This event underscores the difficulty of achieving complete eradication and the resilience of invasive species.
Chinese humanoid robots beat Usain Bolt’s 100m record and human high-jump record: Are humans losing?
At the recent Beijing Robot Games, humanoid robots set remarkable new benchmarks in speed and agility. One robot sprinted 100 meters in an astonishing 9.39 seconds, shattering Usain Bolt's record. Another demonstrated incredible prowess with a standing high jump of 2.88 meters, surpassing human limits. These milestones reflect China's advancements in the robotics field, yet experts caution that widespread adoption remains a future prospect.
A cactus-eating moth released on Caribbean islands as biological control later reached Florida
The Argentine cactus moth, an invasive species from South America, has begun its march across the southern United States, threatening the delicate balance of native prickly pear cactus populations. Initially identified in Florida in 1989, its westward movement raises alarms among scientists regarding potential ecological disruptions in the southwestern U.S. and Mexico. Control measures, including the sterile insect technique, are in place to monitor and manage its spread.
Nagaland discoveries push known human habitation in Northeast India back by around 3,500 years
Archaeologists have made an exciting discovery in Nagaland's Noklak district, uncovering pottery fragments that are approximately 3,500 years old. This revelation extends the timeline of human occupancy in Northeast India. The site also yielded stone tools and charred cereal remnants, hinting at a more intricate pattern of human migration and the development of agriculture. Continued exploration is anticipated to reveal even more about this ancient past.
New Zealand removed 200,000 mice from an island; native bird populations more than doubled
New Zealand's 2016 effort to remove an estimated 200,000 mice from Antipodes Island has been followed by a clear recovery in native bird populations. Monitoring confirmed the mice were gone in 2018, while surveys over the next six years found Antipodes Island pipit and snipe numbers had more than doubled.
Apollo 15 astronauts found green glass beads on the Moon; decades later, they revealed evidence of water inside
Apollo 15 astronauts found unusual green flecks on the Moon's surface. These flecks were later identified as volcanic glass beads containing trapped water. Researchers discovered hydrogen within these tiny beads, proving lunar water existed. This finding challenged the long-held belief that the Moon was extremely dry. The discovery revealed significant water presence deep within the Moon's interior.
From Thumba to tomorrow: Indian space programme is preparing for its biggest leap yet
India's space program began with a small rocket range in 1962. It progressed to launching its first satellite and developing indigenous launch vehicles. Chandrayaan-3's lunar landing marked a significant achievement for the nation. The program now includes private sector involvement and ambitious future goals. India aims for a space station by 2035 and a lunar landing by 2040.
Delhi-NCR twins turn okra, fenugreek and rice husk into a Rs 100 electricity-free water filter
Delhi-NCR twins Naina and Nayantara Singh developed a plant-based water purification system. Their innovation, Aqua Sattva, uses okra, fenugreek, and rice husk to remove contaminants. This system targets microplastics and PFAS, often called forever chemicals. Independent laboratory testing showed significant removal efficiency for these pollutants. The affordable and eco-friendly prototype aims to make safe drinking water more accessible.
Jharkhand's Dhanbad turned a barren coal-belt hillock green; CISF is now trying the same experiment on 6 acres along Delhi’s Yamuna
In a remarkable effort to rejuvenate Delhi's Yamuna floodplain, CISF personnel have embarked on an ambitious forest reclamation project. By planting thousands of trees and vetiver grass near Sarai Kale Khan, they aim to combat land degradation and curb soil erosion along the riverbank. This initiative, inspired by a successful ecological effort in Dhanbad's mining regions, is part of a larger strategy for restoring and preserving the Yamuna floodplain.
Scientists realised 1,200 Starlink satellites could double as a giant scanner for Earth’s atmosphere
Starlink satellites are now helping scientists map Earth's upper atmosphere. Researchers used orbital data from Starlink to estimate thermosphere density. This method creates a two-dimensional map of atmospheric density variations. The findings offer a new way to study this difficult-to-observe region. Commercial satellite data is becoming an unexpected scientific resource.
Asia’s high-mountain ‘water tower’ is losing 24 billion tonnes of groundwater annually, new research finds
Groundwater reserves in High Mountain Asia are experiencing severe depletion annually due to a combination of climate impacts and excessive human water usage. The irrigation needs in the lower basins dramatically exacerbate groundwater storage losses. If current consumption trends continue, projections suggest that depletion will persist. Although temporary glacier melt may provide a short reprieve, this will be followed by a more rapid decline.
New snake species named after Guns N’ Roses guitarist Slash; here’s why scientists chose him
In a fascinating discovery, scientists have unveiled a new non-venomous snake species from New Guinea, named Lielaphis slashi. This remarkable naming pays tribute to Guns N' Roses guitarist Slash, also known as Saul Hudson, who has always been captivated by reptiles and the natural world. First encountered during past fieldwork, this small ground-dwelling snake signifies the incredible biodiversity and urgent conservation efforts needed in New Guinea.
