Friday, 6 July 2018

Ice Block Avalanche


One of the most actively changing areas on Mars are the steep edges of the North Polar layered deposits. via NASA https://ift.tt/2MX4iFs

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Lunar Occultation of Venus

On Wednesday, June 17, skywatchers across the United States—and parts of Canada—enjoyed a rare event: a daytime lunar occultation of Venus. ...