Astronomy

A curious cow watches as NASA astronauts Andre Douglas and Kate Rubins perform a simulated moonwalk in the San Francisco Volcanic Field in Northern Arizona on May 14, 2024.

We might not think we remember something, but attempting to recall it still fires up activity in our brain linked to memory, which seems to direct our behaviours

We might not think we remember something, but attempting to recall it still fires up activity in our brain linked to memory, which seems to direct our behaviours

Paramount announced that the show's five-season mission is coming to an end last week with a heartfelt 'thank you' from the showrunners.

A mystery signal detected high in the sky above Antarctica defies current models of physics and could represent a new particle, scientists say.

The beginning of the industrial development of LISA was among the highlights for the European Space Agency on the second day of the International Paris Air Show. 

The workings of the small intestine have long been a mystery, but now we are discovering the hidden roles this organ plays in appetite, metabolism and the microbiome – and how to look after it better

The workings of the small intestine have long been a mystery, but now we are discovering the hidden roles this organ plays in appetite, metabolism and the microbiome – and how to look after it better

Even without subsidies, renewable energy is staying competitive with power from gas and coal

Astronomers have used the ALMA radio telescope to investigate how planets grow in protoplanetary disks of gas and dust around young stars.

Watch the stunning Mars and Regulus conjunction today with this free livestream

According to scientific legend, quantum mechanics was born on the island of Helgoland in 1925. A hundred years later, physicists are still debating the true nature of this strange theory - and recently returned to the island to discuss its future

According to scientific legend, quantum mechanics was born on the island of Helgoland in 1925. A hundred years later, physicists are still debating the true nature of this strange theory - and recently returned to the island to discuss its future

Get ready for a new Roman Empire: A NASA space telescope will detect a staggering wealth of intricate gravitational lenses that could help unlock the mysteries of dark matter.

The nonprofit iNaturalist announced that it received a $1.5-million grant from Google’s philanthropic arm to develop generative AI tools for species identification. The news didn’t go over well

The collapse of the world’s second-largest ice sheet would drown cities worldwide. Is that ice more vulnerable than we know?

Writers, artists, photographers and researchers share the stories behind the stories

Outsmart greenwashing with tips for more sustainable clothing

Play this crossword inspired by the July/August 2025 issue of Scientific American

Earth will likely warm by more than 1.5 degrees Celsius, but we can’t give up on trying to get temperatures back down