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: 14 min 58 sec ago
Meet Zainab Nathani, the Illinois student who designed a solar water-harvesting material
Zainab Nathani has created a groundbreaking solar-powered material capable of drawing potable water from the moisture in the air. This remarkable innovation garnered her recognition at the Regeneron International Science and Engineering Fair. Additionally, she established a program to support the development of clean water wells abroad. Nathani’s work elegantly fuses scientific advancements with dedicated advocacy for accessible water worldwide, aiming to tackle critical water access issues.
African honeyguides recognise honey hunters' calls to help find hidden bee nests
In Africa, wild honeyguides have showcased their remarkable ability to identify specific human calls, making them indispensable allies for honey hunters searching for concealed bee nests. Recent studies reveal that these birds are more responsive to local calls than to those from outsiders. This finding implies the evolution of a sophisticated communication system honed through generations, facilitating the birds' survival by guiding them to beeswax.
In the 1990s, a predatory flatworm was released in Samoa to control giant African snails
The introduction of the invasive flatworm, Platydemus manokwari, aimed at pest control, has resulted in a dramatic decline of native tree snail populations in the Pacific Islands. This aggressive predator actively hunts these snails, driving several species towards extinction. Following previous unsuccessful biological control attempts, federal data now labels these native snails as endangered or threatened, prompting strict biosecurity measures to halt the invasion of this detrimental species.
In 1885, New Zealand introduced hedgehogs to fight pests; today, they threaten native wildlife
European hedgehogs were brought to New Zealand during the 1800s to help manage garden pests. However, these spiky creatures now pose a grave danger to the country's unique wildlife. They feast on the eggs and young of various native species, significantly impacting fragile ecosystems, particularly those involving ground-nesting birds. As a result, ongoing conservation initiatives are prioritizing hedgehog removal to protect these threatened populations.
Scientists find fire salamanders glow blue-green under UV light from secretions
Under ultraviolet light, adult fire salamanders reveal a captivating blue-green fluorescence generated by their skin secretions, lasting for several hours. This striking luminescence is mainly concentrated in areas rich in glands, especially along their flanks and underside. Researchers propose that this unique trait could serve functions in communication or as a warning signal, enhancing our understanding of the fire salamander's biology.
Have we found first exomoon? Strange object forcing astronomers to rethink what a moon is
Astronomers have found strong evidence for a massive object orbiting a brown dwarf. This object behaves like a moon, circling another body which orbits a star. Researchers are calling it an exosatellite due to its host's unusual nature. This discovery marks a significant step towards confirming the first exomoon. Future observations will determine its definitive classification and implications.
Antarctica holds more than 60% of Earth’s meteorites, but warming could hide thousands in ice
Antarctic meteorites face significant loss due to climate warming. Warming ice causes meteorites to sink and become inaccessible. Researchers estimate thousands are lost annually, with substantial future losses projected. These extraterrestrial samples offer vital insights into our Solar System's history. Urgent action is needed to preserve these unique scientific resources.
Scientists tested two Argentine ant baits; one sent them roaming, other drove them near water
The study from the University of California, Riverside, found that two common ant-bait insecticides can cause very different changes in Argentine ant behaviour before the ants die. Thiamethoxam made affected ants unusually active and sent them roaming outside the nest, while boric acid caused ants to stop foraging and gather inside. The findings show that unusual ant activity after treatment does not necessarily mean the pesticide has failed.
Henrietta Lacks died at 31, but her cells lived on and transformed modern medicine
Henrietta Lacks' cervical cancer cells became immortal, revolutionizing biomedical research and medical advancements. These HeLa cells were vital for developing the polio vaccine and studying various diseases. Her family remained unaware of this scientific breakthrough for decades after her death. The story highlights critical ethical debates concerning patient consent and financial benefits. This legacy continues to shape discussions on scientific progress and human dignity.
New model may improve solar storm forecasts
Scientists developed a computer model to predict solar eruption speeds. This model helps forecast disruptions to satellites and power grids. Researchers studied Coronal Mass Ejections and their magnetic origins. Observations supported the link between magnetic reconnection and eruption acceleration. These findings improve forecasting of solar event impacts on Earth.
