The world’s fastest supercomputer just broke the exascale barrier
The first exascale computer has officially arrived. The world’s fastest supercomputer performed more than a quintillion calculations per second, entering the realm of exascale...
SCIENTIFIC NEWS
Trained dogs sniff out COVID-19 as well as lab tests do
Dogs are as reliable as laboratory tests for detecting COVID-19 cases, and may be even better than PCR tests for identifying infected people who...
The Solar Orbiter spacecraft spotted a ‘hedgehog’ on the sun
A spacecraft has spied a spiky “hedgehog” on the sun and watched a solar flare in ways never done before. The Solar Orbiter, a...
Great white sharks may have helped drive megalodons to extinction
For millions of years, megalodon sharks were top ocean predators — and then came the great whites. New analyses of shark teeth hint that...
An ‘acoustic camera’ shows joining the right boy band boosts a frog’s sex appeal
Loud sounds matter in both car design and frog flirting. So New Hampshire biologists lugged an acoustic camera used by car designers to springtime...
Scientists hope to mimic the most extreme hurricane conditions
Winds howl at over 300 kilometers per hour, battering at a two-story wooden house and ripping its roof from its walls. Then comes the...
Scientists made a Möbius strip out of a tiny carbon nanobelt
From cylindrical nanotubes to the hollow spheres known as buckyballs, carbon is famous for forming tiny, complex nanostructures (SN: 8/15/19). Now, scientists have added...
Missing COVID-19 data leave us in the dark about the current surge
As science journalists, we’re accustomed to data. We sift through it and talk it over with experts. We pay close attention to the stories...
Mass shootings and gun violence in the United States are increasing
On May 24, at an elementary school in Uvalde, Texas, 19 children and two teachers were killed by a shooter. Just 10 days earlier,...
High altitudes may be a climate refuge for some birds, but not these hummingbirds
Cooler, higher locales may not be very welcoming to some hummingbirds trying to escape rising temperatures and other effects of climate change. Anna’s hummingbirds...
A new treatment could restore some mobility in people paralyzed by strokes 
What has Perseverance found in two years on Mars? 
This robot automatically tucks its limbs to squeeze through spaces 
Greta Thunberg’s new book urges the world to take climate action now