For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

The vanilla species grown for its flavoring is finicky. Genes from its wild relatives could help make it hardier — but not if those cousins go extinct.

In a small cell therapy trial, 10 out of 12 people with type 1 diabetes no longer needed supplemental insulin, even a year after treatment.

AI models such as ChatGPT consume serious power. Experts break down where that energy goes, and what you can do to help.

A key advisory group vows to base decisions on evidence, boost confidence in vaccines and protect health. Experts fear the opposite is happening.

Algae grown under Mars-like conditions could make bioplastic building materials for structures to harbor life in space.

The system contains a sensor, chip and tiny AI model inspired by biological eyes and brains and uses a tenth of the energy of a camera-based system.

These are the first public images collected by the Chile-based observatory, which will begin a decade-long survey of the southern sky later this year.

Exploding stars V462 Lupi and V572 Velorum are best seen from the Southern Hemisphere. One has been spotted from the United States.

Celina Zhao is a Summer 2025 science writing intern at Science News. She holds bachelor’s and master’s degrees in science writing from MIT. Previously, she interned at Science and NOVA.

Art and literature hint at past people’s psyches. Now computers can identify patterns in those cognitive fossils, but human expertise remains crucial.