
Mouse Embryos Grown without Eggs or Sperm
Two research teams grew synthetic embryos using stem cells for long enough to see some organs develop
First published in 1869, Nature is the world's leading multidisciplinary science journal. Nature publishes the finest peer-reviewed research that drives ground-breaking discovery, and is read by thought-leaders and decision-makers around the world.

Mouse Embryos Grown without Eggs or Sperm
Two research teams grew synthetic embryos using stem cells for long enough to see some organs develop

Does a Smallpox Drug Work for Monkeypox? What Scientists Know
The antiviral Tecovirimat (TPOXX) shows promise against monkeypox, but human data and supplies are limited

New Polio Outbreaks Worldwide Put Scientists on Alert
Cases of paralysis in the U.S. and Israel suggest vaccine-derived poliovirus has infected many people

Scientists Reflect on Anthony Fauci’s Impact
From the AIDS epidemic to the COVID-19 pandemic, the iconic medical chief has advised seven presidents on numerous outbreaks

Cheap New Method Breaks Down ‘Forever Chemicals’
A new technique destroys persistent PFAS without requiring high pressures and temperatures

Biden Signs Historic Climate Bill as Scientists Applaud
Climate scientists are excited for the billions of dollars the Inflation Reduction Act will pour into fighting climate change but urge further action

Nuclear War Could Spark Global Famine
Smoke from burning cities would engulf Earth after a nuclear war, causing worldwide crop failures and starvation, models show

Guardians of the Brain
The nervous and immune systems are tightly intertwined. Deciphering their chatter might help address many brain disorders and diseases

Drones Bearing Parcels Deliver Big Carbon Savings
Last-mile delivery by a small drone takes much less energy per package than delivery by diesel truck

In Memoriam: James Lovelock (1919–2022)
The inventor who introduced the Gaia hypothesis to environmental science leaves behind a rich legacy

The Risk of Heart Disease after COVID
Some studies suggest that the risk of cardiovascular problems, such as a heart attack or stroke, remains high even many months after a SARS-CoV-2 infection clears up

How Humans’ Ability to Digest Milk Evolved from Famine and Disease
A landmark study is the first major effort to quantify how lactose tolerance developed

The Hunt for Drugs for Mild COVID
People who are unlikely to develop severe COVID-19 have no widely approved medications to ease the illness

Chronic Covid: The Evolving Story
When SARS-CoV-2 lingers in the body, it accumulates many of the same mutations seen in the most dangerous global variants. What can scientists do with this knowledge?

COVID Variants Found in Sewage Weeks before Showing Up in Tests
A technique that detects coronavirus strains circulating in a community could become an early-warning system

What Researchers Know about Gun Policies’ Effectiveness
Studies are “decades behind,” owing to a lack of funding, but research is picking up

Ukrainian Mathematician Becomes Second Woman to Win Prestigious Fields Medal
Maryna Viazovska, who works on the geometry of spheres, is one of four winners of the coveted prize this year

A Person Got COVID from a Cat in First Confirmed Case
Scientists in Thailand have established that a tabby passed SARS-CoV-2 to a veterinary surgeon—although such cases of cat-to-human transmission are probably rare

Climate Change Is Turning More of Central Asia into Desert
The rapid expansion will have significant impacts on ecosystems and the people and animals who rely on them

Racism Drives Environmental Inequality—But Most Americans Don’t Realize
Survey finds that most people think poverty is why pollution disproportionately affects Black people, despite evidence that racism is the major cause

New COVID Drugs Face Delays as Trials Get Harder to Do
The success of vaccines has reduced the pool of people available for studies, among other factors

Treating Alzheimer’s Before It Takes Hold
Researchers are giving drugs to healthy people in hope of clearing away toxic proteins in the brain and preventing neurodegeneration.

NASA’s Perseverance Rover Begins Key Search for Life on Mars
Rolling up an ancient river delta in Jezero Crater, the rover starts crucial rock sampling.

‘Unsustainable’: How Satellite Swarms Pose a Rising Threat to Astronomy
SpaceX and other companies are still struggling to make their satellites darker in the night sky