Any sufficiently advanced technology is indistinguishable from magic.

— Arthur C. Clarke's Third Law

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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.
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550 years later, scientists claim to have solved what killed Botticelli’s muse

Sun, 07/26/2026 - 6:00am

Italian Renaissance painter Sandro Botticelli painted Simonetta Vespucci as Venus rising from the waves. Now scientists think they’ve solved how she died

Categories: Astronomy

The math of traffic jams and how to avoid them

Sat, 07/25/2026 - 7:00am

When the roads get crowded, many drivers start changing lanes. Mathematics suggests this intuition is typically wrong

Categories: Astronomy

SpaceX launches Starship on successful test flight

Fri, 07/24/2026 - 8:35pm

Starship demonstrated key abilities on its path to becoming a fully reusable transport to take astronauts to the moon

Categories: Astronomy

Fungus-made fashion—researchers turn living organisms into textiles

Fri, 07/24/2026 - 3:00pm

This biodegradable textile is alive and can host engineered microbes that can change its color or add UV protection

Categories: Astronomy

NHTSA considers new car door safety rules after fatal Tesla crashes

Fri, 07/24/2026 - 2:30pm

After fatal crashes in which occupants or rescuers could not open Tesla doors, federal regulators are considering rules that would require obvious mechanical releases—but any new standard could take years

Categories: Astronomy

When will the cyclosporiasis outbreaks end?

Fri, 07/24/2026 - 2:02pm

Thousands of people have gotten sick from Cyclospora. Experts can’t agree whether the end is in sight

Categories: Astronomy

Europe’s heat waves are killing thousands—and wringing its soils dry

Fri, 07/24/2026 - 12:17pm

The European continent is facing a dual reckoning this summer—extreme heat is killing thousands and draining its rivers, soils and reservoirs at a record pace

Categories: Astronomy

How a 99-year-old mathematician unraveled a century-old braid mystery

Fri, 07/24/2026 - 7:15am

Joan Birman popularized the Burau representation problem decades ago. Now she and two colleagues have a proof that reveals brand new insights into the geometry of braids

Categories: Astronomy

Is it possible to regain a sense of smell? These scientists are working on it

Fri, 07/24/2026 - 7:00am

Smell is one of the most complex and least understood senses

Categories: Astronomy

The Rubin Observatory’s greatest legacy will be this ‘movie’ of the sky

Fri, 07/24/2026 - 6:45am

Using the new Vera C. Rubin Observatory, astronomers are beginning the largest and deepest survey of the sky. What will they see?

Categories: Astronomy

Sunlight benefits and risks: what science says about healthy sun exposure

Fri, 07/24/2026 - 6:00am

Could sunlight actually improve your health? New research suggests we may need to rethink total sun avoidance

Categories: Astronomy

How lost shipping containers helped map the world’s ocean currents

Fri, 07/24/2026 - 1:30am

Thousands of shipping containers vanish every year—what becomes of them?

Categories: Astronomy

Ancient geology could insulate Iran’s nuclear centrifuges under Pickaxe Mountain from bombing

Thu, 07/23/2026 - 5:25pm

Iran’s Pickaxe Mountain, or Kuh-e Kolang Gaz La in Persian, is part of a volcanic arc that formed tens of millions of years ago and is made of a tough-to-penetrate rock

Categories: Astronomy

Transplanted testicular tissue grew sperm in an infertile patient

Thu, 07/23/2026 - 4:30pm

The history of testicular transplants is long and often sordid, but this successful procedure offers hope for survivors of cancer and other diseases that affect fertility

Categories: Astronomy

Why environmental groups are suing over SpaceX’s land swap deal

Thu, 07/23/2026 - 3:08pm

If approved, this deal would give SpaceX hundreds of acres that are currently part of the Lower Rio Grande Valley National Wildlife Refuge in exchange for private land

Categories: Astronomy

Why don’t insects live in the ocean?

Thu, 07/23/2026 - 2:00pm

Nobody knows why insects aren't found living in the ocean. Scientists just eliminated one theory

Categories: Astronomy

Humans may have spoken 10 times as many languages 2,000 years ago

Thu, 07/23/2026 - 2:00pm

During a lost ‘golden age’ of language, humans may have spoken tens of thousands of different tongues, a new study suggests

Categories: Astronomy

Why Tom Hiddleston finds Pompeii so haunting—and so human

Thu, 07/23/2026 - 12:00pm

Actor Tom Hiddleston reflects on the first time he visited Pompeii as a teenager and explains why the ancient city’s preserved tragedy continues to shape his understanding of history and humanity

Categories: Astronomy

China’s Kimi K3 and the rise of open-weight AI models

Thu, 07/23/2026 - 11:30am

Moonshot AI’s Kimi K3 shows how opening a model to outsiders can turn other companies’ computing power into a competitive advantage

Categories: Astronomy

2026 Fields Medals go to four young mathematicians

Thu, 07/23/2026 - 10:00am

The 2026 Fields Medals recognize breakthroughs in the math of messy fluids, tangled knots, spinning pencils, and more

Categories: Astronomy