The James Webb telescope spotted CO2 in an exoplanet’s atmosphere
The first definitive detection of the gas on a world in another solar system paves the way for detections in planets that are more Earthlike.
NASA’s Artemis I mission sets the stage for our return to the moon
The launch, scheduled for August 29, will test many aspects of the rocket, capsule and spacesuits that will take astronauts back to the moon.
‘Chameleon’ forces remain elusive in a new dark energy experiment
A hypothetical fifth force associated with “chameleon” dark energy and that morphs based on its environment didn’t turn up in a sensitive experiment.
Science & Society
A new seasoning smells like meat thanks to sugar — and mealworms
A spoonful of sugars could help cooked mealworms go down more easily, a potential boon for the planet.By Anil Oza
7-million-year-old limb fossils may be from the earliest known hominid
An earlier report on one of the bones of a 7-million-year-old creature that may have walked upright has triggered scientific misconduct charges.By Bruce Bower
Sleep deprivation may make people less generous
Helping each other is inherently human. Yet new research shows that sleep deprivation may dampen people’s desire to donate money.By Sujata Gupta
News stories have caught spiders in a web of misinformation
Nearly half of news stories about peoples’ interactions with spiders contain errors, according to a new analysis.By Betsy Mason
Not one, but two asteroids might have slain the dinosaurs
A craterlike structure found off West Africa’s coast might have been formed by an asteroid impact around the same time the dinosaurs went extinct.By Nikk Ogasa
Sea urchin skeletons’ splendid patterns may strengthen their structure
“Voronoi” geometric patterns found in sea urchin skeletons yield strong yet lightweight structures that could inspire the creation of new materials.
Extreme climate shifts long ago may have helped drive reptile evolution
The end-Permian extinction left reptiles plenty of open ecological niches. But rapid climate change may be what kick-started the animals’ dominance.By Beth Geiger
An award-winning photo captures a ‘zombie’ fungus erupting from a fly
The winner of the 2022 BMC Ecology and Evolution photo competition captures a macabre cycle of life and death in the Peruvian Amazon
Common, cheap ingredients can break down some ‘forever chemicals’
Forever chemicals, or PFAS, are harmful compounds that are very difficult to degrade. But some are no match for lye and dimethyl sulfoxide.By Jude Coleman