IOTD stories

 
Okay, no. This isn't a real sunspot…but doesn't that make this image that much more impressive? Scientists at the National Center for Atmospheric Research used a 76-teraflop supercomputer — and about 2 billion data points to create this lovely simulation.
 
This gorgeous infrared image of Zeta Ophiuchi was taken with NASA's Wide-field Infrared Survey Explorer (WISE). Although interstellar dust makes Zeta Ophiuchi appear red, this supergiant is actually blue — and moving fast. Astronomers believe it was once part of...

Pages