03/01/2025

Orca Tahlequah's new baby dies

In a day of sadness and surprise, researchers on Puget Sound on Tuesday found J61, the new calf born to mother orca Tahlequah, had not survived—and that a new calf had also been born to J pod.

Fossil study reveals oldest-known evolutionary 'arms race'

A study led by researchers at the American Museum of Natural History presents the oldest known example in the fossil record of an evolutionary arms race. These 517-million-year-old predator-prey interactions occurred in the ...

Hubble captures a pale blue supernova in galaxy LEDA 22057

This NASA/ESA Hubble Space Telescope Picture of the Week features the galaxy LEDA 22057, which is located about 650 million light-years away in the constellation Gemini. Like the subject of a previous Picture of the Week, ...

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