The approach du jour for most researchers is something known as Light Detection and Ranging ( LIDAR) -- a laser-based technology capable of creating precise maps over relatively large areas.
Three years ago PARC scientists stumbled onto a surprising insight: Combining laser techniques with a whisk-broom bundle of fiber-optic threads enables incredibly accurate detection of traveling cancer cells, at a much faster pace than current screening allows.
Government plans to bolster detection and mitigation capabilities include an infrared sensor that would orbit Venus, as well as a laser system or other method to deflect any threatening meteor away from Earth, they said.