Happy Birthday Linnaeus and Dark Matter

The current issue of The Economist has a couple of brief stories spanning (as usual) multiple Powers of Ten; in this case ranging from the classification of species to collision between galaxy clusters (clusters mind you, not any of those plain old galaxy collisions... like the upcoming collision (or is this one?) of our own milky way with the Andromeda Galaxy...)

So here we go:

• Species Inflation: Hail Linnaeus -- Good old Carl is having his 300th birthday on May 23 ...
  
• Biodiversity: Fathoming out evolution -- What you find on the ocean floor if you care about looking (or rather fishing, scraping, or other means of collecting.. )
  
• Astrophysics: The prints of darkness -- This has also been noted on this blog before...