Month: November 2016

Wind Carved Rock on Mars

The distinctively fluted surface and elongated hills in this image in Medusae Fossae are caused by wind erosion of a soft fine-grained rock. Called yardangs, these features are aligned with the prevailing wind direction. This wind direction would have dominated for a very long time to carve these large-scale features into the exposed rock. via NASA http://www.nasa.gov/image-feature/wind-carved-rock-on-mars Amazing.

Election Day 2016

Thanks to a bill passed by Texas legislators that put in place technical voting procedure for astronauts, they have the ability to vote from space through specially designed absentee ballots. To preserve the integrity of the secret vote, the ballot is encrypted and only accessible by the astronaut and the county clerk responsible for casting it. via NASA http://ift.tt/2fXPzgO Amazing.