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an illustration of a neutron being blasted from a blazar

SPEED TEST  A neutrino blasted from a bright galaxy known as a blazar (illustrated) along with a flare of light reveals that neutrinos travel at roughly the speed of light.  

Jupiter moons

NEW MOON, I SAW YOU ORBIT ALONE  Of 12 recently discovered Jovian moons (illustrated in bold orange, blue and green), one orbits in the opposite direction of its neighbors (arrows show orbit direction). Four moons discovered by Galileo are also shown (purple).

Dunkleosteus

STRONG SWIMMER  The armored, jawed fish Dunkleosteus was a top ocean predator around 380 million to 360 million years ago, during the late Devonian Period. 

nerve cells

RIGHT ON TARGET  A painkiller made with botulinum toxin prevents certain nerve cells (green) from relaying pain information to the brain in mice.



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