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Tech

Scientists Say: Digital Footprint

Your digital footprint contains both what you post online — and information about your online activity collected by others.

Space

Did James Webb telescope images ‘break’ the universe?

James Webb data show bright, massive galaxies that would appear to require new physics to explain. But maybe not, Hubble data suggest.

Animals

This egg-laying amphibian feeds its babies ‘milk’

Similar to mammals, this caecilian — an egg-laying amphibian — makes a nutrient-rich, milk-like fluid to feed its babies up to six times a day.

Artificial Intelligence

How to design artificial intelligence that acts nice — and only nice

Today’s bots can’t turn against us, but they can cause harm. “AI safety” aims to train this tech so it will always be honest, harmless and helpful.

Artificial Intelligence

‘Jailbreaks’ bring out the evil side of chatbots

Researchers break chatbots in order to fix them. This so-called red-teaming is an important way to improve AI’s behavior.

Chemistry

Turning jeans blue with sunlight might help the environment

When dipped in indican and exposed to sunlight, yarn turns a deep blue. This process is more eco-friendly than the current denim dyeing method.

Animals

Among mammals, males aren’t usually bigger than females

In a study of more than 400 mammal species, less than half have males that are heavier than females.

Earth

Scientists Say: Supercontinent

These gigantic landmasses form when much of Earth’s landmass smashes together.

Artificial Intelligence

A new tool could guard against deepfake voice scams

Scammers can use AI to create deepfake mimics of people’s voices. AntiFake could make that type of trick much harder to pull off.