Can a COVID-19 vaccine’s second dose be delayed? It’s complicated
Within a couple weeks after a first vaccine dose, people are well protected against severe COVID-19, new data suggest. With demand for shots far...
SCIENTIFIC NEWS
Solar storms can wreak havoc. We need better space weather forecasts
Since December 2019, the sun has been moving into a busier part of its cycle, when increasingly intense pulses of energy can shoot out...
COVID-19 vaccines may be ready for teens this summer
Encouraging news about COVID-19 vaccines keeps coming. No unusual safety issues arose during the first month of vaccination, when 13.8 million doses of the...
A new laser-based random number generator is the fastest of its kind
By normal standards, the design for a new laser is a total dud. Rather than producing a crisp, steady beam, the laser casts a...
A single male lyrebird can mimic the sound of an entire flock
You might be able to do a mean celebrity impression or two, but can you imitate an entire film’s cast at the same time?...
Having more friends may help female giraffes live longer
Grown-up giraffes just aren’t huggy, cuddling, demonstrative animals. So it took identity-recognition software grinding through five years of data to reveal that female social...
Ardi may have been more chimplike than initially thought — or not
One of the earliest known hominids, a 4.4-million-year-old partial skeleton of a female dubbed Ardi, had hands suited for climbing trees and swinging from...
Protons’ antimatter is even more lopsided than we thought
The proton’s antimatter is out of whack. An imbalance between two types of antiparticles that seethe within the proton is even wonkier than previously...
Redefining ‘flesh-colored’ bandages makes medicine more inclusive
When Linda Oyesiku was a child, she skinned her knee on her school’s playground. The school nurse cleaned her up and covered the wound...
Climate change helped some dinosaurs migrate to Greenland
A drop in carbon dioxide levels may have helped sauropodomorphs, early relatives of the largest animal to ever walk the earth, migrate thousands of...
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