News
- Neuroscience
Brain waves common during sleep also show up in awake sheep
Sleep spindles, thought to help solidify memories in people, may do similar work during wakefulness if these daytime ripples occur in humans.
- Animals
Bright yellow spots help some orb weaver spiders lure their next meal
Experiments with cardboard arachnids suggest that orb weaver spiders have evolved yellow colorations on their undersides to attract bees and moths.
- Health & Medicine
What the new phase of the coronavirus outbreak in the U.S. means for you
U.S. health experts warn there are probably many undetected COVID-19 cases already here, raising chances the disease will soon be widespread.
- Space
A black hole eruption marks the most powerful explosion ever spotted
Hundreds of millions of years ago, a black hole blasted out roughly 100 billion times as much energy as the sun is expected to emit in its lifetime.
- Animals
Glowing frogs and salamanders may be surprisingly common
A widespread ability to glow in striking greens, yellows and oranges could make amphibians easier to track down in the wild.
- Planetary Science
An ancient magma ocean may have once driven Earth’s magnetic field
Computer simulations of molten silicate under extreme temperatures and pressures may have just filled in a gap in the history of Earth’s magnetism.
- Planetary Science
China’s moon rover revealed what lies beneath the lunar farside
China’s Yutu-2 rover found layers of fine sand and coarse gravel under the surface of the moon’s farside.
- Humans
Evolving an arch across the foot’s width helped hominids walk upright
The arch across the foot evolved at least 3.4 million years ago, possibly before the lengthwise arch. Both arches help humans to walk and run.
- Climate
Ordering from a local store can curb online shopping’s CO₂ emissions
Online shopping isn’t necessarily better for the environment than going to the store in person, a new study finds.
- Health & Medicine
Coronavirus’ spread in the U.S. may be a question of when, not if
The virus that causes COVID-19 is likely to gain a foothold in U.S. communities, says the US Centers for Disease Control and Prevention.
- Health & Medicine
We may be on the brink of a coronavirus pandemic. Here’s what that means
The coronavirus behind COVID-19 has not yet reached pandemic status, according the WHO, but we could be close.
- Archaeology
South Asian toolmaking withstood the biggest volcanic blast in 2 million years
Toolmakers continued to strike sharp-edged flakes as usual after a volcano’s colossal eruption around 74,000 years ago on what’s now Sumatra Island.
