News
- Health & Medicine
What you need to know about J&J’s newly authorized one-shot COVID-19 vaccine
Even as a third COVID-19 vaccine becomes available in the United States, questions remain over how well it works and if people will take it.
- Health & Medicine
Global inequity in COVID-19 vaccination is more than a moral problem
Wealthy countries are vaccinating at much higher rates than low-income countries. Such inequities could ultimately prolong the pandemic for all.
- Health & Medicine
Can a COVID-19 vaccine’s second dose be delayed? It’s complicated
New data indicate that delaying second doses of COVID-19 vaccines may still provide protection, but some scientists aren’t convinced it’s OK.
- Health & Medicine
COVID-19 vaccines may be ready for teens this summer
Vaccinating children against COVID-19 is a crucial step towards reaching herd immunity and returning to pre-pandemic life.
- Tech
A new laser-based random number generator is the fastest of its kind
A new laser’s chaotic light beam lets the device generate multiple number sequences at once, similar to throwing multiple dice at a time.
- Animals
A single male lyrebird can mimic the sound of an entire flock
The Australian birds, already famous for their impressive song-copying skills, appear to be replicating the sounds of a “mobbing flock” of birds.
- Animals
Having more friends may help female giraffes live longer
A more gregarious life, even while just munching shrubbery, might mean added support and less stress for female giraffes.
- Anthropology
Ardi may have been more chimplike than initially thought — or not
A contested study of hand and foot fossils suggests this 4.4-million-year-old hominid was a tree climber and branch swinger.
- Particle Physics
Protons’ antimatter is even more lopsided than we thought
The SeaQuest experiment finds that down antiquarks within the proton are more prevalent than up antiquarks.
- Paleontology
Climate change helped some dinosaurs migrate to Greenland
A drop in CO2 levels helped massive plant eaters called sauropodomorphs trek from South America to Greenland 214 million years ago, says a new study.
- Animals
A mountain lizard in Peru broke the reptilian altitude record
Liolaemus tacnae was photographed 5,400 meters above sea level in the Andes, breaking the highest elevation record for a reptile by about 100 meters.
- Planetary Science
Watch real video of Perseverance’s Mars landing
NASA’s Perseverance rover filmed its own landing on Mars. Here’s that video.
