News
- Earth
Wildfires and farm fertilizer use are fueling ozone pollution
Fires and agricultural soils can rival cars and factories in emitting chemicals that lead to ozone, making it hard to meet air quality standards.
- Animals
Stinky penguin poop strikes fear into the hearts of Antarctic krill
A chemical in Adélie penguin guano may have cued krill to take evasive maneuvers in lab tests.
- Cosmology
A map of 14 million galaxies and quasars deepens a dark energy mystery
The DESI experiment shocked cosmologists with a hint that dark energy varies over time. Now, with more data, the conclusions hold up.
- Tech
A hopping robot shows off its squirrel-like skills
Salto the jumping robot can take a flying leap and land on a narrow pipe — just like a squirrel soaring from branch to branch.
- Neuroscience
Parrots and humans share a brain mechanism for speech
Brain activity in vocalizing budgerigar parrots showed a pattern that harkened to those found in the brains of people.
- Space
The nearest single star to Earth has four small planets
Last year, astronomers announced that a planet orbits Barnard’s star. Now, researchers have confirmed the existence of three more.
- Space
Two astronauts stuck in space for 9 months have returned to Earth
Astronauts Suni Williams and Butch Wilmore’s extended stay in the International Space Station will add to what we know about how space affects health.
- Cosmology
New baby pictures of the universe deepen a cosmic mystery
Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.
- Animals
Some of Sydney’s koalas are chlamydia-free, but still at risk
Southwestern Sydney's koalas have avoided the chlamydia outbreak threatening the entire species. But their isolation has left them extremely inbred.
- Animals
The mystery of how iguanas crossed the Pacific Ocean may be solved
The iguanas' 8,000-kilometer trip — one-fifth of the Earth’s circumference — is the longest made by a flightless land vertebrate.
- Health & Medicine
Measles is spreading. Here’s what experts say you should know
The uptick in measles cases has left many people wondering about early signs of measles, whether they need an updated vaccine and treatment options.
- Health & Medicine
Therapy dogs can ease young patients’ anxiety in the emergency room
A clinical trial found that spending about 10 minutes with a therapy dog reduced patients’ anxiety in a pediatric emergency room.
