Strange cloud show spotted high above Marsâ€™ surface remains mysterious
J Thoendell stashed this in Space
Almost three years ago, the Red Planet put onÂ a bit of a showÂ for anyone with a telescope big enough, and an eye trained enough, to spot it. As theÂ Terra CimmeriaÂ region of Marsâ€™ Southern Hemisphererotated into view, a faint bulge rose above the smooth curve of the planetâ€™s surface. It looked like a cloud, but it was too tallÂ andÂ too weird.
Starting on March 12, 2012, amateur astronomers reported seeing the odd lump on the Martian horizon. Reports continued to pour in over the next 11 days as the lump became even more obvious. It petered out some time before April 1, but a second occurrence was observed between April 6 and April 16. Each time, its form varied from day to day, and it was seen as dawn swept across the regionâ€”but not at dusk.
Although the Mars Reconnaissance Orbiter imaged the area daily, it did so in the afternoon, and nothing showed up.
Stashed in: Mars!