IN THIS ISSUE

Los Alamos Firsts

• The first cell sorter
  Los Alamos invented, and has regularly improved upon, the technology to isolate different kinds of cells.

Articles

• Twitter vision
  Show a computer enough photos, and it’ll begin to recognize what it sees.
• Unraveling life four letters at a time
  The genomics revolution that came after the Human Genome Project
• Phase five
  What makes the cuprates special? How about a new phase of matter.
• Intruder alert for the cyber world
  A new strategy for stalking stealthy intruders inside busy computer networks

Spotlights

• Moulin bleu
  A rare morsel of good news about sea-level rise from the Greenland ice sheet
• How to spot a nuke
  Laser-driven blast of neutrons reveals concealed nuclear bomb materials
• Explosives going dark
  An enhanced green fluorescent protein stops glowing when explosives are present.