[/caption] They are headed toward the surface like a speeding freight train… and running ahead of them is a shockwave. Just like a loud sound can trigger a snow avalanche here on Earth, the shockwave of a meteorite crashing through the Martian atmosphere could trigger dust avalanches on the surface before an actual impact. According … Continue reading Incoming! Meteorite Shockwaves Could Set Off Martian Dust Avalanches