News
- Life
These are the 5 costliest invasive species, causing billions in damages
Invasive species have cost the global economy at least $1 trillion since 1970 and $162.7 billion in 2017 alone. The annual cost is increasing.
- Archaeology
Stone Age culture bloomed inland, not just along Africa’s coasts
Homo sapiens living more than 600 kilometers from the coast around 105,000 years ago collected crystals that may have had ritual meaning.
- Animals
Weather radar shows 30 metric tons of grasshoppers swarmed Las Vegas one night
Everything’s glitzier in Las Vegas. The most intensely lit U.S. city shows the impact of artificial light on insects on a megascale.
- Health & Medicine
Moderna and Pfizer COVID-19 vaccines may block infection as well as disease
The mRNA vaccines are about 90 percent effective at blocking coronavirus infection, which could lead to reduced transmission, real-world data suggest.
- Physics
Uranium ‘snowflakes’ could set off thermonuclear explosions of dead stars
Uranium crystals that settle in the cores of white dwarfs could trigger nuclear chain reactions that blow the dead stars apart, a new study suggests.
- Astronomy
Here’s why humans chose particular groups of stars as constellations
Distances between stars, their brightnesses and patterns of human eye movement explain why particular sets of stars tend to be grouped together.
- Ecosystems
How kelp forests off California are responding to an urchin takeover
A pair of studies reports 95 percent loss of kelp forests along the northern coast while sea otters are helping maintain surviving kelp farther south.
- Science & Society
Parents in Western countries report the highest levels of burnout
The first survey comparing parental exhaustion across 42 countries links it to a culture of self-reliance.
- Astronomy
The ‘USS Jellyfish’ emits strange radio waves from a distant galaxy cluster
The unusual pattern of radio waves dubbed the USS Jellyfish tells a story of intergalactic gas meeting black hole by-products.
- Animals
A toxin behind mysterious eagle die-offs may have finally been found
A 20-year study of water weeds and cyanobacteria in the southern United States pinpoints a bird-killing toxin, and it's not your usual suspect.
- Animals
A gene defect may make rabbits do handstands instead of hop
Mutations in a gene typically found throughout the nervous system rob rabbits of their ability to hop. Instead, the animals walk on their front paws.
- Health & Medicine
AstraZeneca’s COVID-19 vaccine holds up in an updated analysis of trial data
The redo dropped the overall efficacy of AstraZeneca’s vaccine from 79 percent to 76 percent. But a slight fluctuation is not unexpected, experts say.
