Strange plumes that have been observed above the surface of the Red Planet are baffling scientists. This image shows the location of the mysterious plume (circled) on Mars; south is up. Image credit: W. Jaeschke / D. Parker. On two separate occasions in March and April 2012, amateur astronomers reported bright, extremely high-altitude plumes developing on Mars. The plumes were seen rising to altitudes of 200 – 250 km above the same region, Terra...
