Briefing

Tissue samples sent to the International Space Station reveal what can happen to astronauts on long-term missions.

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here are all of your questions answered.

We spoke with NASA astronaut Matthew Dominick in an exclusive, first-ever interview from the cupola of the International Space Station.

Chemical fingerprints from volcanic rock offer hints of what’s happening in the mantle below the area where three rift zones meet in East Africa

Nature, Published online: 04 July 2025; doi:10.1038/d41586-025-02161-1

New evidence suggests that Neanderthals rendered fat from bones to stave off protein poisoning. Plus an interstellar object is about to pass through our Solar System and why some animal mimics aren’t great replicas.

Nature, Published online: 07 July 2025; doi:10.1038/d41586-025-02075-y

Award-winning mentors share best practice to keep your team going amid political upheavals, economic downturns and other events.

Nature, Published online: 07 July 2025; doi:10.1038/d41586-025-02096-7

Experimental treatment could offer a safer, cheaper alternative to CAR T cell therapies for disorders such as lupus.

Surprising colors and stunning features are captured in a new image of Mars’ surface.

A collection of more than 50 pieces of memorabilia previously owned by Sally Ride, the first American woman to reach space, sold at auction last week for more than $145,000.

In principle, this impossible math allows for a glue-free bridge of stacked blocks that can stretch across the Grand Canyon—and into infinity