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This nematode is part of the clade Ecdysozoa, the subject of new research on animal nervous systems. (Credit: shoma81/Shutterstock)

Nematode ecdysozoa

Learn about the wide-ranging Ecdysozoa group of animals and how scientists solved the curious case of their nervous systems' structure. 

Fossils Solve a Nervous System Mystery in Molting Animals 

As comets approach the center of the Solar System, they send off trails of gas and dust. (Credit: Nazarii_Neshcherenskyi)

A falling comet

Learn more about Comet C/2024 G3 (ATLAS), which may be visible from the Southern Hemisphere in mid- to late-January.

The New Year Comet C/2024 G3 May Be 2025’s Brightest — Here’s What to Know

An artist’s rendering shows how Ahvaytum bahndooiveche may have appeared in a habitat dating to around 230 million years ago. (Credit: Gabriel Ugueto)




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