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: 21 min 32 sec ago
Between 1969 and 1972, US released a weevil to fight musk thistle; it later attacked native thistles
A biological control initiative aimed at managing invasive thistles integrated a weevil specifically targeting musk thistle. Unfortunately, this insect extended its reach to native plant species, leading to detrimental effects on local thistles, including an endangered variety that experienced a decline in seed production. This situation underscores the critical importance of careful evaluation in invasive species control programs.
China becomes first to recover orbital rockets using two methods: How Zhuque-3 works
China's LandSpace company achieved a significant milestone in reusable rocket technology. The Zhuque-3 rocket's first stage successfully landed vertically on land after launch. This achievement demonstrates a key step towards reducing space launch costs for China. The successful recovery follows modifications after a previous mission's failure. This development supports China's expanding satellite internet ambitions and global space market competition.
Why Nataraja Statue Stands At CERN: India’s gift meets particle physics
In 2004, India presented CERN with a statue of Shiva Nataraja, a powerful symbol of cosmic creation and destruction. This statue serves as a metaphor for the essence of scientific exploration. At CERN, researchers delve into the universe's tiniest components and its earliest moments, viewing Shiva's dance as a representation of the ever-changing behavior of subatomic particles, weaving together ancient mythology and contemporary scientific knowledge.
A rotating 'garbage island' spreads over 1.6 million sq km in the Pacific with 50 kilograms of plastic per square kilometre
Between the shores of Hawaii and California floats a staggering 1.6 million square kilometers of plastic debris. This island of waste includes not just nets and ropes but also countless microplastics that pose serious threats to marine wildlife. Animals often mistake plastics for food, while others become trapped in ghost fishing gear.
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.
