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2 DAYS AGO
Researchers Claim to Have Solved the Perplexing ‘Reverse Sprinkler’ Problem That Stumped Feynman
Physicists have debated which way a submerged sprinkler sucking in water would spin. Careful experiments provide an answer.
A DAY AGO
Mary-Dell Chilton Dies at 87; Helped Create First Genetically Modified Plant
In 1982, she led the research team that figured out how to genetically alter plants, a discovery that would eventually transform global agriculture.
A DAY AGO
An Extraordinary White House Meeting
A new book sheds light on President Trump’s affinity for fossil fuels.
A DAY AGO
Burning Houses to Save Houses
We visited researchers seeking ways to make homes safer. They set a lot of fires.
A DAY AGO
Why Does Wildfire Smoke Turn the Sky Orange?
It’s about how light scatters in our atmosphere.
- SCIENTIFIC AMERICAN21 HOURS AGO

SpaceX’s latest Starship launch attempt ends in a scrub
SpaceX's first attempt to launch its Starship megarocket on its thirteenth flight test ended before it could properly begin, aborting just before liftoff
A DAY AGO
Meet Earth’s Newest Monkey. (And Check Out Its Orange Lips.)
It is only the fifth new African monkey identified as a new species in the past 75 years.
- SCIENTIFIC AMERICAN11 HOURS AGO

Cyclospora outbreak linked to iceberg lettuce supplied to Taco Bell
U.S. officials have traced an explosive diarrhea-causing parasite outbreak in five states to shredded lettuce served at the popular fast-food chain
- SCIENTIFIC AMERICAN11 HOURS AGO

Ancient Egyptian princesses were ‘powerful’ weapon users, new analysis suggests
These findings challenge a long-held belief about weapons found in female burial sites
- SCIENTIFIC AMERICAN10 HOURS AGO

Permanent daylight savings is bad for Americans’ health—here’s what science says could be better
More sunlight in the evenings doesn't always equate to better health
- SCIENTIFIC AMERICAN10 HOURS AGO

What’s the longest total solar eclipse?
Duration, location, aviation: What makes the best possible view of a total solar eclipse?
- SCIENTIFIC AMERICAN9 HOURS AGO

See unprecedented images of Sunda clouded leopards, the ‘ghosts of the forest’
New, never-before-seen images provide a glimpse into the secretive lives of a clouded leopard species found in the dense rainforests of Borneo and Sumatra
- SCIENTIFIC AMERICAN3 HOURS AGO

U.S. cities have the worst air quality in the world right now—here’s how to stay safe
Wildfire smoke may be as much as 10 times more dangerous than other forms of air pollution, research suggests
2 HOURS AGO
The Latest Texas Floods Tested Warning Systems. This Time, They Passed.
A lack of sirens and flood forecasting systems made the state’s Hill Country vulnerable to deadly floods last summer. That has changed.
11 HOURS AGO
Rare Pair of Improbably Light ‘Super-Puff’ Planets Is Discovered
They’re less dense than cotton candy, and they will help astrophysicists better understand the most unusual ways giant planets can form.