Archives: November2009

• GALAXY PICTURE: Cosmic Ray Mystery Solved?

  Star explosions accelerate high-energy particles called cosmic rays, sending them darting across space, according to a new study of gamma ray-filled galaxies.

  
  
  
  
  
  
  
  
  
  

• Kilimanjaro’s Snows Gone by 2022?

  Ernest Hemingway must be reaching for a bottle of grappa in his grave. The snows of Kilimanjaro—inspirations for a Hemingway story of the same name—could be gone by 2022, a new study confirms.