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- SCIENTIFIC AMERICANA DAY AGO

Neuroscientists pinpoint how smells bring back childhood memories
Smell can bring back vivid childhood memories—the so-called "Proust's madeleine" phenomenon—and neuroscientists now think they know why
- SCIENTIFIC AMERICANA DAY AGO
Avocado flowers switch sex daily—now we know why
New work explains how avocado trees coordinate a complex reproductive strategy, switching every day between male and female
- SCIENTIFIC AMERICANA DAY AGO

The ultimate science summer reading list
SciAm books editor Bri Kane shares her favorite science books for every summer mood
A DAY AGO
Fauci Invokes the Fifth Amendment, Refusing to Answer Senate Committee Questions
The panel’s chairman, Rand Paul, has long accused Dr. Fauci of funding research that triggered the Covid pandemic and lying about it to Congress — charges Dr. Fauci denies.
- SCIENTIFIC AMERICANA DAY AGO

A unique cellular trick may explain octopus intelligence
A newly discovered change in ribosomal RNA makes protein production more precise, potentially safeguarding these cephalopods' complex nervous systems
- SCIENTIFIC AMERICANA DAY AGO

Hundreds of ancient, never-before-seen ‘earthworks’ discovered in the Amazon
Many of these structures date to around C.E. 100–300, during the time of the Aquiry civilization, and may have been used for ceremonial purposes
- SCIENTIFIC AMERICANA DAY AGO

Rescue mission to save NASA’s Swift space telescope is imperiled in orbit
A private spacecraft launched to boost the decaying orbit of NASA's Swift Observatory is now suffering from potentially mission-ending malfunctions
- SCIENTIFIC AMERICANA DAY AGO

Astronomers spot best-yet example of a wandering supermassive black hole
Giant black holes adrift in deep space are normally invisible—unless they're dining on stars
2 DAYS AGO
Should We Make Daylight Saving Time Permanent?
More light at the day’s end comes at a price: much later winter sunrises across much of the U.S. Scientists have documented consequences for public health and the economy.
A DAY AGO
Trump Administration Is Repurposing Federal Land for A.I. Data Centers
In the latest example, the Energy Department will convert a shuttered Cold War-era uranium enrichment facility into a data center campus and gas plants.
- SCIENTIFIC AMERICAN21 HOURS AGO

Bizarre new material discovered in Hiroshima bombing debris
he extreme conditions of atomic bomb explosions create "uncontrolled microexperiments" that, in Hiroshima, forged a never-before-seen metallic alloy
2 DAYS AGO
How to Predict the Weather in Our Era of Freakish Storms
I didn’t want to have to depend on a weather app to know when the storms are coming.
17 HOURS AGO
How to Tell if a Giant Manta Is Pregnant? Give Her an Ultrasound.
Scientists managed to confirm pregnancies in three giant mantas with underwater ultrasound scans, offering clues to the animals’ elusive reproductive habits.
- SCIENTIFIC AMERICAN3 HOURS AGO

Spacecraft will swarm asteroid Apophis during fateful 2029 Earth flyby
Space agencies around the globe are coordinating missions to visit the asteroid Apophis during a close encounter with Earth in 2029
6 HOURS AGO
Bipartisan Anger Grows at Pentagon’s Delayed ‘Forever Chemicals’ Cleanups
Hundreds of bases are contaminated with PFAS, which are linked to low birth weight and other risks. Politicians from both parties are demanding explanations.