Science & Society
‘End Times’ explores the catastrophic events that could kill us all
A new book looks at the threats that could wipe out humankind and what can be done to counteract them.
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Cover Story
How strep throat may spark OCD and anxiety in some kids
A potential link between strep throat and sudden mental disorders in children raises questions about how infections can alter the brain.
Reviews & Previews
Science Visualized
Astronomy
NASA’s Chandra X-ray telescope celebrates 20 years in space
The U.S. space agency has released new images for the Chandra X-ray Observatory’s 20th birthday.
Notebook
Science & Society
Public trust that scientists work for the good of society is growing
More Americans trust the motives of scientists than of journalists or politicians.
Features
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Textile archaeologists use ancient tools to weave a tapestry of the past
Using tools leftover from ancient spindles and looms, textile archaeologists are starting to understand the fabrics of the past.
More Stories from the August 31, 2019 issue
- Particle Physics
Dark matter particles won’t kill you. If they could, they would have already
The fact that no one has been killed by shots of dark matter suggests the mysterious substance is relatively small and light.
- Life
Giving cats food with an antibody may help people with cat allergies
Research by pet-food maker Purina aims to disable the major allergen carried in cat saliva, a protein called Fel d1.
- Climate
Mercury levels in fish are rising despite reduced emissions
Climate change and overfishing can increase how much mercury accumulates in fish, counteracting efforts to reduce human-caused emissions.
- Life
How these tiny insect larvae leap without legs
High-speed filming reveals how a blob of an insect can leap more efficiently than it crawls.
- Anthropology
Ancient Maya warfare flared up surprisingly early
Extreme conflicts broke out well before the decline of the Maya civilization, researchers say.
- Astronomy
Stars may keep spinning fast, long into old age
NASA’s TESS telescope has spotted an old star that spins too fast for theory to explain, suggesting that stars may have a magnetic midlife crisis.
- Astronomy
TESS has found the first-ever ‘ultrahot Neptune’
NASA’s TESS telescope has spotted a world that could be a bridge between other types of exoplanets: hot Jupiters and scorched Earths.
- Life
Monkeys can use basic logic to decipher the order of items in a list
Rhesus macaque monkeys don’t need rewards to learn and remember how items are ranked in a list, a mental feat that may prove handy in the wild.
- Health & Medicine
A new study challenges the idea that the placenta has a microbiome
A large study of more than 500 women finds little evidence of microbes in the placenta, contrary to previous reports on the placental microbiome.
- Earth
Decades of dumping acid suggest acid rain may make trees thirstier
Acidified soil loses calcium, which can affect trees’ ability to hang on to water.
- Particle Physics
How a 2017 radioactive plume may be tied to Russia and nixed neutrino research
A botched attempt at producing radioactive material needed for a neutrino experiment may have released ruthenium-106 to the atmosphere in 2017.
- Paleontology
This newfound predator may have terrorized the Cambrian seafloor
A newly discovered spaceship-shaped predator raked through the Cambrian seafloor in search of food.
- Life
This is the first fungus known to host complex algae inside its cells
In the lab, an alga and a fungus teamed up to exchange food, similar to lichens. But instead of staying outside, the alga moved into the fungal cells.
- Life
50 years ago, scientists thought they knew why geckos had sticky feet
50 years ago, scientists thought gecko feet had suction cups that allowed the animals to stick to surfaces. Today we know tiny hairs do the job.
