The Moon, Europa

The Moon, Europa

Wednesday, September 28, 2011

Lasers and Orora...Aroruh...The Northern Lights

NASA is gearing up to test their new laser communications system. The test will last for several years and will, hopefully, lead to the implementation of a system that will enable the transmission of a much larger data stream between mission control and mission locations. It will be a complicated process with a lot of links in the technical chain that will have an opportunity to fail. The test platform will contain "telescopes, lasers, mirrors, detectors, a pointing and tracking system, control electronics, and two different types of modems." What does all this mean? It will give them much faster data downloads from probes and rovers: "It currently takes 90 minutes to transmit high-resolution images from Mars, but NASA would like to dramatically reduce that time to just minutes.It  Read the complete article at the NASA website: laser-comm


Also, here are a couple of nifty videos featuring the Aurora Borealis:
As seen from the ISS: Northern Lights from the ISS
Aurora explained: Earth's Aurora

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