Today is the 5th birthday of SDO Science Data. On May 1, 2010, SDO was commissioned as a NASA observatory and began sending science data to ...

An very nice animation of SDO images for the month of January 2014 is featured on the Astronomy Picture of the Day for March 12, 2014. The ...

When I think about solar maximum it isn’t just sunspot number. I think about how bright the Sun has gotten in the wavelengths of light tha...