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Plumes from Mars

18 February 2015

An interesting story at http://phys.org/print343307323.html … plumes seen rising from Mars, high above the surface. On two occasions amateur astronomers reported the plumes. Now, NASA astronomers had a look at some old images from the Hubble telescope and they found a really big plume from 1997. Now it is being taken seriously, we may well suspect, amateurs excluded. Sccientists are actually being forced to address the issue – and what might cause the plumes. One theory is a connection with auroral phenomena.

Meanwhile, at http://phys.org/print343307567.html … we have some new images from Comet Churyumov-Gerasimenko – taken by Rosetta.

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