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: 56 min 32 sec ago
Sequoias' survival hinges on fire management; researchers urge expanding controlled burns to protect forests
Giant sequoias faced unprecedented losses in recent wildfire seasons. A NASA-funded study shows controlled burns dramatically improve their survival chances. Mature trees in treated forests were four times less likely to die. This practice minimizes fuel and allows fires to burn with lower intensity. Expanding prescribed burning programs is crucial for preserving these ancient giants.
25,000-year-old cave discovery reveals ancient Australian rituals
In Cloggs Cave, archaeologists have discovered evidence of ancient GunaiKurnai grass burning rituals that spanned 25,000 years. The findings, which include microscopic plant remnants, ash layers, and a remarkable standing stone, shed light on the deep-rooted spiritual connection that these ancient communities fostered with nature. This enduring practice highlights the intricate relationship between the environment and their spiritual ceremonial activities.
In 1955, Hawaii released a cannibal snail to control another invasive snail, but the predator…
Hawaii introduced a predatory snail in 1955 to control pests, which then devastated native tree snails. Scientists now operate a snail emergency room to protect the remaining species. These colorful kāhuli snails were once abundant and culturally significant to Hawaiians. Captive breeding is slow, and efforts focus on predator-proof fences for reintroduction. Conservationists strive to prevent further extinctions, highlighting a global trend of human-induced endangerment.
A silent coral reef came back to life after scientists played recordings of healthy reefs underwater
128 new Saturn moons discovered: Scientists say they are fragments of ancient worlds
Saturn now holds the record for the most known moons after 128 new discoveries. These small irregular moons offer clues about Saturn's violent past and ancient collisions. Astronomers used the Canada-France-Hawaii Telescope to detect these faint objects over several years. The findings suggest a major collision occurred within Saturn's moon system recently. This event likely created many of Saturn's numerous small irregular moons.
Scientists are introducing two truffle-eating marsupials to rebuild this Australian island destroyed by feral cats
In a groundbreaking conservation initiative, two endangered marsupial species are set to be reintroduced to Shark Bay. Recent research emphasizes the crucial role of fungal food sources in this process. Utilizing DNA analysis, scientists identified suitable fungi for the boodies and woylies, which are vital for spreading spores during their foraging activities. Their return will revitalize essential ecological dynamics that have been missing from Dirk Hartog Island for many years.
Astronomers warn millions of satellites could permanently brighten Earth's night sky
Ambitious satellite plans may significantly brighten Earth's night sky for all observers. European Southern Observatory researchers warn of potential impacts on astronomical studies. Millions of proposed satellites could collectively increase diffuse sky brightness, obscuring faint objects. Scientists suggest a balance is needed between satellite benefits and research impacts. Decisions made now will shape the future of astronomy for many years.
AI can become more biased than humans while choosing who gets hired; study finds
Artificial intelligence systems are increasingly used for hiring and recruitment tasks. New research shows these AI models can develop their own biases. This occurs as they learn from limited data and repeated hiring decisions. These AI systems create new stereotypes, not just inheriting them from training data. Fairness in AI hiring depends on system design and optimization strategies.
Scientists are planning to install an 80km underwater curtain to stop an Antarctic glavier from melting, here's why
In an exciting scientific endeavor, researchers are exploring the idea of constructing a massive underwater curtain to defend Thwaites Glacier against warm ocean currents. This strategic barrier is intended to redirect these warmer waters, aiming to curb the glacier's swift melting. A recent expedition gathered vital information from the Amundsen Sea to determine the project's feasibility, while additional studies in Svalbard focus on understanding the environmental ramifications of the barrier.
