astroPPM

We are all incredibly saddened by events in Colorado. May peace be with those who have passed, their families, and those traumati...

Image adapted from a photograph of Tanzania's  Ngorongoro Crater taken by William Warby (April 2008) When the Sun hit...

 ,  .. This photo of Pluto's system taken in 2005 by the Hubble  Telescope has just been...well, usurped as the ...