AI models can't tell time or read a calendar, study reveals
Challenges in visual and spatial processing and a deficit in training data have revealed a surprising lack of timekeeping ability in AI systems
Planet Earth
150,000-year history of Earth's magnetic field reveals clues about the climate when early humans were spreading out of Africa
The record sheds light on the climate early humans experienced when they were spreading out of Africa.
The decline of key Atlantic currents is underway, and it's been flooding parts of the US for 20 years
New research has linked sea level rise and an increase in flooding in the U.S. Northeast over the past 20 years to the breakdown of the Atlantic Meridional Overturning Circulation (AMOC).
LATEST ARTICLES
Space
Eerie NASA image shows eclipsed sun with an extra moon overhead. Yes — it's real.
NASA's PUNCH mission, a tiny constellation of four satellites, captured a photo of the moon drifting across the sky through a haze of sunlight. The mission is still undergoing commissioning and is expected to start science operations June 9.
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Science Spotlight
Discover the research changing our understanding of the world
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Space photo of the week
Extraordinary images of our sublime universe
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Life's Little Mysteries
Science questions, answered
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Amazing animals
A look at the weird and wonderful species that live on our planet
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Science quizzes
Test your knowledge of everything from space to nature
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Diagnostic dilemma
Unusual case reports from the medical literature
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Incredible places
A window onto extraordinary landscapes on Earth
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Rare diseases
Medical conditions you may never have heard of before
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Astonishing artifacts
A glimpse into how people lived in the past
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Earth from space
Incredible images of our planet from above
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Science news this week
Our roundup the biggest discoveries and top science in the news each week
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Health
Dyson Purifier Cool PC1 (TP11) review: A summer must-have or an overpriced fan?
Reviews The Dyson Purifier Cool PC1 is a great fan-air purifier combo, but it lacks the 'wow' factor that would justify its high price.
Animals
Living lunch box? Iceland orcas are unexpectedly swimming with baby pilot whales, but it's unclear why.
Newborn pilot whales have been spotted mysteriously swimming among pods of orcas. Scientists are trying to puzzle out how the pilot whale calves got there and what happened to them.
Scientists solve mystery of how orange cats got their coats — and why so many are male
Researchers have discovered how orange cats got their coats — and why so many of them are male. The coat color comes from a genetic mutation on the X chromosome of orange, calico and tortoiseshell cats.
Human Behavior
Physics & Mathematics
Physicists take step toward a 'theory of everything'
A new physics paper takes a step toward creating a long-sought "theory of everything" by uniting gravity with the quantum world. However, the new theory remains far from being proven observationally.
Chemistry
Scientists create ultra-tough copper alloy that is stronger than steel and can withstand temperatures of 1500 F
The new super-strong copper alloy can be used to build better airplanes and spacecraft.
Technology
Scientists use AI to encrypt secret messages that are invisible to cybersecurity systems
Scientists say that hiding secret messages using AI chatbots could lead to a world of iron-clad encryption.
