Rossby Waves Half a Million Miles Wide Detected on the Sun

According to LiveScience, the sun is roiling with waves almost half a million miles wide.  These Rossby waves, or planetary waves, exist in all rotating fluids and have now been detected in the sun.  Interestingly, they move in opposite direction to the rotation of the sun.

Trained Jumping Spiders

Typically, spiders that jump get squished.  However, scientists, in an endeavor to understand the biomechanics needed to make jumping micro-robots, have trained a regal jumping spider to jump on command. How they performed this feat is highlighted in this fascinating article in National Geographic.