Science Alert

Subscribe to Science Alert feed 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: 1 hour 39 min ago

Slash-and-burn farming was blamed for destroying rainforests, but a study something different

2 hours 15 min ago
In various small communities, unwritten agreements are crucial for sustainable land management. These norms not only restrict deforestation, fostering forest regeneration, but also bolster biodiversity by allowing flora and fauna to thrive. Research highlights the effectiveness of these traditions in safeguarding forest health over time. It is essential for policymakers to support and uphold these local practices for robust environmental conservation.

These fish are born female & later become male; fishing may be changing them at molecular level

2 hours 19 min ago
A new study has found that heavy fishing may be changing pearly razorfish at the molecular level. Researchers found no major changes in the fish's DNA but discovered differences in DNA methylation, an epigenetic process that affects how genes work. The study also found that marine reserves help preserve larger, older fish and maintain higher genetic diversity.

Conservationists filled a 1.2km river channel, new Somerset wetland now attracts rare wildlife

5 hours 24 min ago
A river restoration project in Somerset, UK, has shown major benefits within a year of completion. By reconnecting the River Aller with its floodplain, researchers found reduced flood peaks, cleaner water, higher groundwater levels and a sharp rise in wetland habitat. The restored landscape has also attracted more wildlife, including fish, birds and water voles.

Scientists used AI to analyse 116,000 birdsongs, identify eight common motifs

6 hours 39 min ago
Scientists have identified eight common sound patterns that form the basis of birdsong after analysing more than 116,000 recordings from 3,160 songbird species worldwide. The study found that birds living in different habitats sing differently because forests, open landscapes and the way sound travels influence which songs work best, alongside evolution.

Study finds Japanese horseshoe bats match each other's frequency to reduce noise in colonies

7 hours 39 min ago
A new study has found that greater Japanese horseshoe bats adjust their echolocation calls to match the frequencies used by others in their colony instead of avoiding them. Researchers say this shared frequency creates a clearer listening range, helping bats detect prey more effectively despite many overlapping calls from nearby colony members.

Quote of the day by Alexander Fleming: "You do not know what you will find, you may set out to find one thing and…” - why life's biggest discoveries are often unexpected

25/07/2026
Great discoveries often arise from unexpected observations and accidents. Alexander Fleming's penicillin discovery exemplifies this principle of embracing the unforeseen. Curious minds transform surprises into significant breakthroughs by asking questions. The journey of exploration can yield more value than the original destination. Innovation thrives when individuals remain open-minded to new possibilities and uncertainties.

Zebra mussels spread across all Great Lakes within a decade of arriving in 1988

25/07/2026
Zebra mussels, an aquatic invader from Eurasia, continue their continental spread after arriving in North America. These tiny shellfish are now infesting Lake Meredith in Texas, raising new concerns. Officials confirmed a reproducing population, marking the lake as a potential stepping stone. The mussels damage ecosystems and infrastructure by clinging to hard surfaces and multiplying rapidly. Preventative measures like cleaning boats remain crucial to slowing their ongoing invasion.

Two scientists want to touch Saturn's rings: NASA says this daring mission could actually work

25/07/2026
For centuries, space has fascinated humans like no other. From the sun's glare to the moon's surface and even Saturn's shimmering rings, we have wanted to go up close and see it all. Now, two ambitious NASA-backed projects aim to truly touch Saturn's rings, venturing into what is known as one of the most dangerous environments in the solar system.

Scientists warn melting glaciers could form more than 50,000 new lakes in areas covered by ice

25/07/2026
In a study published in Nature Communications, researchers from Sweden, US, Switzerland and Norway mapped what lies beneath all the glaciers on the planet and reached a shocking conclusion: when part of this ice disappears, Earth could gain 56,659 new lakes in areas currently completely frozen. This could increase the risk of flooding in Asia, Andes, Alaska and the Arctic

Scientists say current Antarctic ice loss can guide sea-level planning until mid-century

25/07/2026
Governments need to proactively address rising sea levels expected within the next thirty to fifty years. Recent data on Antarctic ice loss provides a sound basis for this timeframe. Beyond this period, projections may grow less reliable as melting ice accelerates. This crucial window facilitates necessary improvements to monitoring systems and coastal defenses, particularly for Pacific island nations relying on timely information for critical adaptation strategies.

Scientists discover humidity may help control insects' biological clocks, not just light and temperature

24/07/2026
New research suggests humidity influences insect biological timing. Daily dry and humid swings synchronize circadian rhythms in many species. Fruit flies adjusted activity to humidity shifts, showing internal clock adjustments. Mosquitoes, however, treated moisture as a short-term behavioral cue. This finding highlights humidity as a previously overlooked environmental time cue.

From Mars to your bicycle: NASA's puncture-proof tyre, built for Mars rovers, could replace rubber tyres

24/07/2026
NASA developed non-rubber, airless metal tyres using Nitinol. These puncture-proof tyres adapts to harsh terrain and extreme temperatures without damage, offering a smooth ride. Future applications may include heavy-duty trucks and commercial aircraft landing gear.

Pages