LIVE Wednesday, Dec. 17, 2025: Your daily feed of the biggest discoveries and breakthroughs making headlines.

Pumas in Patagonia, Argentina are eating penguins in a national park — and it's changing how the big cats are interacting with each other.

A new study reveals the likely origin of a mysterious spider-like pattern first spotted on Jupiter's moon Europa in 1998. The finding could have implications for a NASA spacecraft en route to the frozen world.

These Anglo-Saxon accessories were recovered from the side of a hill in England and may be from a hoard, a ritual deposit or a collection of stolen items.

Decades ago, a spacecraft suggested Saturn's largest moon, Titan, had an ocean. New observations suggest that the liquid may look more like slush.

The discovery of a hidden supermassive black hole inside an ancient galaxy suggests that some of our universe's most extreme objects could be invisible unless observed in infrared wavelengths, James Webb telescope observations reveal.