Astronomy

Astronomers have discovered that 3I/ATLAS is carrying methanol and other chemicals that were probably important in the origin of life

Astronomers have discovered that 3I/ATLAS is carrying methanol and other chemicals that were probably important in the origin of life

Researchers from NASA's Jet Propulsion Laboratory in Southern California monitor a research drone in the Dumont Dunes area of the Mojave Desert in September 2025 as part of a test campaign to develop navigation software to guide future rotorcraft on Mars.

Scientific American talks to the author of When the Moon Hits Your Eye, one of our best fiction picks for 2025

There is relatively little information on the long-term health effects of tattooing, but a couple of recent studies suggest the art form might trigger prolonged inflammation

There is relatively little information on the long-term health effects of tattooing, but a couple of recent studies suggest the art form might trigger prolonged inflammation

New guidance from the CDC’s vaccine advisory panel would do away with a decades-old universal birth dose recommendation for hepatitis B that helped cut infections by 99 percent in the U.S.

Hole in the Sky, by Daniel H. Wilson, is one of Scientific American’s best fiction picks of 2025. In the novel, aliens talk through an AI headset and land in the Cherokee Nation, while the military scrambles to contain and control the unknown

It was thought that complex cells couldn’t survive above a certain temperature, but a tiny amoeba has proven that assumption wrong

There is a widespread belief that altruism and equality drive social behaviour in traditional hunter-gatherer societies, but the truth is more surprising and complex

There is a widespread belief that altruism and equality drive social behaviour in traditional hunter-gatherer societies, but the truth is more surprising and complex

There is a widespread belief that altruism and equality drive social behaviour in traditional hunter-gatherer societies, but the truth is more surprising and complex

There is a widespread belief that altruism and equality drive social behaviour in traditional hunter-gatherer societies, but the truth is more surprising and complex

Our writers and contributors have chosen their favourite ever science-y books, films, TV shows, music, video games, board games and more to see you through the festive period

Our writers and contributors have chosen their favourite ever science-y books, films, TV shows, music, video games, board games and more to see you through the festive period

A partially successful test of China’s Zhuque-3 rocket shows that other countries are rapidly catching up with the U.S in the race for reusable rocketry

Week in images: 01-05 December 2025

Discover our week through the lens

Albert Einstein and Niels Bohr had an ongoing rivalry about the true nature of quantum mechanics, and came up with a thought experiment that could settle the matter. Now, that experiment has finally been performed for real

Albert Einstein and Niels Bohr had an ongoing rivalry about the true nature of quantum mechanics, and came up with a thought experiment that could settle the matter. Now, that experiment has finally been performed for real

RFK Jr.’s vaccine advisory panel will be discussing the inclusion of adjuvants in childhood vaccinations today. Here’s what’s at stake