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 34 min ago
Japan's 600-year-old Daisugi forestry method lets a single tree produce timber for centuries
Japan's 600-year-old Daisugi technique offers a unique way to produce timber without cutting down entire trees. Developed in Kyoto during the 14th century, the method allows a single cedar tree to grow multiple straight trunks that can be harvested for centuries. The ancient practice is now drawing attention as an example of sustainable forestry amid growing concerns over global deforestation
Why the last woolly mammoths survived 6,000 years after the Ice Age
Recent genetic studies have revised the understanding of woolly mammoth extinction. These ancient DNA analyses suggest inbreeding alone did not cause their demise. The last mammoths on Wrangel Island survived for millennia despite genetic isolation. A sudden event, not gradual genetic decline, likely ended their final chapter. This research offers insights for modern endangered species conservation efforts.
High-speed fireball meteor with thunderous flashes and sonic boom passed over New Zealand sky, researchers say it could offer a rare glimpse into the solar system's origin
A spectacular fireball passed over New Zealand sky at an extremely high speed. The celestial visitor produced loud rumbles and bright light displays for observers. Scientists are now collecting data to understand this rare event. Specialised cameras are tracking the meteor's precise flight path. Citizens are encouraged to search for possible meteorite fragments on the ground.
Satellite made by 750 Indian schoolgirls now orbits the Earth near the ISS
After overcoming an initial setback, Indian schoolgirls have successfully launched their AzaadiSAT satellite into orbit. This remarkable project engaged 750 students from 75 schools throughout India, where they contributed to building satellite components that were incorporated into a real ISRO satellite. This successful launch represents a significant stride toward inspiring girls in STEM education, showcasing their dedication and resilience in the face of challenges.
Canada’s 2023 wildfires burned 15.1 million hectares and released 554 million tonnes of carbon
In 2023, Canada faced an unprecedented wildfire season that unleashed staggering carbon emissions from ancient underground soil and peat. These fires devastated extensive landscapes, liberating long-stored carbon accumulated over thousands of years. The challenge with subterranean fires lies in their resilience, transforming carbon sinks into sources of emissions, which exacerbates global warming and intensifies future wildfire risks.
A turtle left the ocean to lay eggs in Costa Rica with a remora attached; the fish held on for...
On a picturesque Costa Rican beach, an unexpected sight caught the eyes of researchers when a mother sea turtle arrived with a lively suckerfish clinging to her shell for an astonishing nineteen minutes. The fish, which seemed to adapt momentarily to land, showcased its gill movements. After careful observation, it was returned to its aquatic home, darting away with unexpected vigor, leaving onlookers astonished by its resilience.
Human blood is becoming a preferred choice for mosquitoes, and scientists think Brazil’s disappearing forests may be the reason
Scientists observed mosquitoes in Brazil's Atlantic Forest feeding on humans more often. This shift suggests habitat loss is pushing mosquitoes towards human hosts. DNA analysis revealed this surprising feeding pattern in protected forest areas. Disappearing wildlife populations may force mosquitoes to seek new blood sources. Protecting forests could help reduce future risks from mosquito-borne diseases.
Lewis Latimer's first patent improved train toilets before electric lighting
Lewis Howard Latimer first patented an improved railway water closet in 1874. This invention addressed sanitation issues for nineteenth-century train passengers. Latimer later became known for his work in electric lighting and Edison. He also developed innovations for incandescent lighting systems. His early patent marked a significant start to his engineering career.
The world's biggest oxygen producer isn't the Amazon. It's the ocean filled with tiny invisible life
Researchers studied 1,561 forest plots across 10 tropical countries; non-native trees formed 28% of stems in young moist forests, but declined as the canopy returned
Young tropical forests show many non-native trees while canopies remain open. As forests mature and canopies close, these non-native species tend to decrease. This pattern was observed across ten tropical countries in a recent study. Early forest regeneration is vulnerable to invasive species, which can establish easily. Understanding these dynamics aids effective forest restoration planning and native ecosystem recovery.
Bermuda snails were thought to be extinct from the island, a decade later breeders have released over 100,000 of them back
Once thought to be lost forever, the incredible Bermuda snail has been successfully revived. A decade ago, a small group was rediscovered and subsequently bred at Chester Zoo. Thousands were released back into safeguarded woodland areas in Bermuda, where six colonies have thrived. This success not only supports ecosystem recovery but also allows conservationists to shift their attention to breeding another rare native snail species.
El Salvador archaeologists lifted a burial sealed beneath 2,800-year-old volcanic ash; the person lay face down with a sea turtle-shaped vessel near one hand
Archaeologists discovered a 2,800-year-old burial in El Salvador clutching a sea turtle vessel. This Mesoamerican burial may belong to a pre-Maya civilization which practiced human sacrifice. The skeleton was found under volcanic ash from an eruption dating to 850-830 BC. Cassava remnants found in the pit symbolize continuation and spiritual resonance. Further chemical analysis will reveal more about the individual's life and diet.
