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Big AI firms have built their models by hoovering up copyrighted material from the internet as training data. They say this is legal, but copyright holders disagree - and this year they hit back in a major way

Big AI firms have built their models by hoovering up copyrighted material from the internet as training data. They say this is legal, but copyright holders disagree - and this year they hit back in a major way

Field Notes From Space-Time columnist Chanda Prescod-Weinstein on how comets grabbed the headlines in 2025

Field Notes From Space-Time columnist Chanda Prescod-Weinstein on how comets grabbed the headlines in 2025

Scientists found a way to let people perceive an intense blue-green hue unlike anything they had seen before – and the technique could help people with colour blindness

Scientists found a way to let people perceive an intense blue-green hue unlike anything they had seen before – and the technique could help people with colour blindness

The Trump administration has targeted everything from public health to space missions for funding cuts, bringing an end to the longstanding US policy of scientific pursuits as a path towards progress and economic prosperity

The Trump administration has targeted everything from public health to space missions for funding cuts, bringing an end to the longstanding US policy of scientific pursuits as a path towards progress and economic prosperity

A bizarre Christmas dinner invitation, some mysterious carol singers and even a spot of charades. Can you solve all 12 of our unique festive riddles?

A bizarre Christmas dinner invitation, some mysterious carol singers and even a spot of charades. Can you solve all 12 of our unique festive riddles?

We knew that GLP-1 drugs like Ozempic and Wegovy did more than just help control type 2 diabetes and aid weight loss, but the extent of that potential really came to light in 2025

We knew that GLP-1 drugs like Ozempic and Wegovy did more than just help control type 2 diabetes and aid weight loss, but the extent of that potential really came to light in 2025

Three thought experiments involving “demons” have haunted physics for centuries. What should we make of them today? 

Three thought experiments involving “demons” have haunted physics for centuries. What should we make of them today? 

Though there were setbacks on climate change and funding for science this year, there was still plenty of amazing discoveries to marvel at

Though there were setbacks on climate change and funding for science this year, there was still plenty of amazing discoveries to marvel at

There are a host of celestial events to get excited about next year – including a total solar eclipse. Abigail Beall is lining up her calendar

There are a host of celestial events to get excited about next year – including a total solar eclipse. Abigail Beall is lining up her calendar

Scientist and photographer Felice Frankel has zoomed in on everyday occurrences with her camera for her new book, Phenomenal Moments, which reveals the hidden science in our daily lives

Scientist and photographer Felice Frankel has zoomed in on everyday occurrences with her camera for her new book, Phenomenal Moments, which reveals the hidden science in our daily lives