Wednesday, 28 November 2018

The Dunes in Mars' Wirtz Crater


In Mars' Wirtz Crater, these dunes are likely active. via NASA https://ift.tt/2TXbOED

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Webb Zooms into Helix Nebula

A new image from NASA’s James Webb Space Telescope of a portion of the Helix Nebula highlights comet-like knots, fierce stellar winds, and ...