"When beggars die, there are no comets seen;
The heavens themselves blaze forth the death of princes."

— William Shakespeare
Julius Cæsar

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Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
Updated: 18 hours 59 min ago

Is Gen Z actually smoking more? An investigation

Fri, 08/07/2026 - 6:30am

Smoking in movies and TV is up, and “cigfluencers” have become a thing, but lags in data make it unclear if the vibe shift has any reality to it

Categories: Astronomy

Smoking was supposed to be fading away. Why are young people embracing it again?

Fri, 08/07/2026 - 6:00am

Smoking rates remain low, but experts say social media, stress and shifting attitudes could be fueling a cigarette revival

Categories: Astronomy

OpenAI’s latest math breakthroughs commit research misconduct, experts say

Thu, 08/06/2026 - 2:43pm

OpenAI released 10 AI-generated results over the weekend. Some mathematicians are unhappy with their approach

Categories: Astronomy

CDC warns of Salmonella outbreak tied to jalapeño peppers sold to Chipotle and QDOBA

Thu, 08/06/2026 - 10:00am

As cases of a parasite-caused disease tied to shredded iceberg lettuce continue to climb, the nation’s top public health body is warning of a new foodborne illness

Categories: Astronomy

Physicists harness sunlight for quantum entanglement

Thu, 08/06/2026 - 10:00am

A proof-of-principle experiment used concentrated sunlight to produce entangled photons

Categories: Astronomy

Can quantum computers solve math’s hardest problem?

Thu, 08/06/2026 - 10:00am

A million-dollar math mystery may someday be resolved in a physics lab. A new study brings this vision one step closer.

Categories: Astronomy

U.S. lawmakers vote to hold Biden’s former medical adviser Anthony Fauci in contempt of Congress

Thu, 08/06/2026 - 9:30am

Fauci previously served as the chief medical officer to President Joe Biden and led the U.S. COVID pandemic response effort during the first Trump administration

Categories: Astronomy

U.S. approves Moderna’s mRNA vaccine for flu—the first of its kind

Thu, 08/06/2026 - 9:00am

This flu shot, mFlusiva, was shown in a clinical trial to be up to 27 percent more effective than a standard flu jab

Categories: Astronomy

Urban landscapes can boost storms—or break them up

Thu, 08/06/2026 - 6:45am

New work shows how different storm types are shifted by cities’ microclimates

Categories: Astronomy

The Scientific American guide to 2026’s total solar eclipse

Thu, 08/06/2026 - 6:00am

Here’s everything you need to know about this eclipse, from the weather to the best viewing locations

Categories: Astronomy

How much of our existence do we owe to sugar?

Thu, 08/06/2026 - 2:48am

It may be time to rethink our relationship with the sweet stuff

Categories: Astronomy

Trump CDC pick Erica Schwartz confirmed to lead nation’s top public health agency

Wed, 08/05/2026 - 4:00pm

The Centers for Disease Control and Prevention hasn’t had a full-time leader in almost a year

Categories: Astronomy

Elon Musk reveals SpaceX plans to build satellite factories on the moon

Wed, 08/05/2026 - 1:30pm

Musk outlined his vision to investors after SpaceX posted a $542-million loss from its space launch sector in its first quarter as a public company

Categories: Astronomy

Neanderthal genes may give modern humans’ muscles a boost

Wed, 08/05/2026 - 11:35am

Most of the world’s population carries at least a little Neanderthal DNA

Categories: Astronomy

Scientists discover a ‘skinny gene’ mutation that acts like Ozempic

Wed, 08/05/2026 - 11:30am

One in 7,000 people carry this gene mutation

Categories: Astronomy

Spectacular images reveal never-before-seen whirlpools on the sun

Wed, 08/05/2026 - 11:00am

Strange whirlpools of plasma seen in the sharpest images ever captured of our star help explain the deep origins of Earth-threatening space weather and more

Categories: Astronomy

How living near mountain lions might actually make you safer

Wed, 08/05/2026 - 11:00am

Mountain lions (also known as cougars or pumas) make roads safer by scaring deer and elk that can cause collisions with cars into more remote areas

Categories: Astronomy

Mathematicians make a breakthrough on Gauss’s riddle, unsolved for 200 years

Wed, 08/05/2026 - 6:30am

A solution to part of the Cohen-Lenstra conjecture helps resolve a long-standing mystery about quadratic forms

Categories: Astronomy

Psilocybin could kick-start anorexia recovery, early results suggest

Wed, 08/05/2026 - 6:00am

An active ingredient in magic mushrooms, psilocybin has shown early promise for treating eating disorders

Categories: Astronomy

YouTube star Simone Giertz has some life and science lessons to share with you

Wed, 08/05/2026 - 6:00am

The Swedish engineer influencer has spent over a decade on YouTube growing a loyal audience of over 2.5 million followers, but for her, the journey was all about living a less typical life in science.

Categories: Astronomy