For the first time, scientists have 3-D printed objects within living cells, including a 10-micrometer long elephant and tiny “barcodes” that could help track individual cells. Remarkably, many of the ...

New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

The U.S. push to mine international waters for metals defies global efforts to control and protect these fragile ecosystems.

Sneaky chemistry by a real-life “Last of Us” Cordyceps fungus mind controls its zombie insect victims by convincing them they’re starving.

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

Sewage-contaminated water absorbs certain wavelengths of light, leaving a signature that can be detected by space-based instruments, a new study finds.

The remains of extinct Homo erectus dredged from the seabed off Java, along with thousands of animal fossils, are revealing a long-lost ecosystem.

Adults who walked more than 100 minutes per day were less likely to have chronic low back pain than those who walked fewer than 78 minutes per day.

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

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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.