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: 59 min 26 sec ago

12 artificial reefs created in 1998 boosted local fish numbers and species richness off Miami Beach

02/09/2026
A 2002 study examined 12 artificial reefs built off Miami Beach using limestone boulders, concrete-gravel aggregate and concrete mixed with waste tyre chips. Divers surveyed the reefs every two months from October 1998 to February 2001, recording fish species, numbers and sizes, along with spiny lobsters. They counted 97,826 fish from 146 species. The researchers found no significant difference in fish abundance, biomass or species richness between the three reef materials. However, comparisons before and after deployment showed that the artificial reefs increased local fish abundance and species richness.

New England is battling invasive green crabs by eating the destructive species in fancy dishes

02/09/2026
New England's creative solution to invasive green crabs involves incorporating them into the local diet and economy. Fishermen now target these soft-shelled crabs, which are gaining popularity and higher prices. Emerging markets for green crab products, including pet snacks and whiskey infusions, aim to counteract the harmful effects of this invasive species while boosting the economy.

Zombie fungus uses dead female flies to infect healthy flies using spores

02/09/2026
A fungus launches infectious spores using pressurized liquid bursts from dead flies. These spores are propelled with significant force, reaching speeds up to ten meters per second. Spore size is crucial, balancing momentum for dispersal and air current transport. Dead female flies attract males, aiding spore spread through contact and movement. This remarkable fungal artillery ensures continued infection and life cycle progression.

In 2003, Nasa found freshwater snails reproduced in space with 50% larger statoconia

02/09/2026
Nasa researchers observed freshwater snails reproducing in space during a Shuttle mission. Their gravity-sensing organs, called statoconia, grew substantially larger in microgravity. Swordtail fish larvae also developed enlarged otoliths, which are similar gravity-sensing stones. This indicated a critical developmental period where altered gravity impacts stone size. The findings suggest these organs regulate to achieve a functional weight.

In 2005, Nasa sent five geckos into space for 16 days without food or water

02/09/2026
Five geckos flew on a 16-day space mission without food or water. This experiment tested reptiles as models for microgravity research. Laboratory analysis revealed changes in bone density and liver cell activity. Researchers attributed these changes to housing and lack of provisions. Geckos' specialized toe pads helped them adhere in weightlessness.

Pages