A brighter design emerges for low-cost, 'greener' LED light bulbs.

Watch Live As a Mountain-Sized Comet Zooms By Mars.

o via Beyond LEDs: Brighter, New Energy-Saving Flat Panel Lights Based on Carbon Nanotubes | American Institute of Physics.

Obama signs “BuySecure” initiative to speed EMV adoption in the US | Ars Technica.