EarthSky News - Nov 22 - Flowing Sand, Not Water, on Mars

November 22 Flowing Sand, Not Water, on Mars by:

Flowing sand, not water, on Mars The dark streaks on Mars known as recurring slope lineae are likely the result of repeated avalanches of sand and dust, rather than seeping water, new research shows. Show family and friends 2 planets U.S. Thanksgiving is Thursday, and many are celebrating with family and friends. On that evening walk after an awesome meal, point out Mercury and Saturn. A farewell to Saturn Two days before it plunged into Saturn's atmosphere last September 15, the Cassini spacecraft returned this final, full mosaic image of the planet. Tonight … Use Big Dipper to find star Capella You've heard of the Big Dipper's pointer stars, which point to Polaris? You can also use them to find the star Capella, aka the Goat Star. No EarthSky News tomorrow. We'll be giving thanks for all of you. If you're celebrating Thanksgving ... hope it's a great one!

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A farewell to Saturn This view is constructed from 42 wide-angle shots acquired across 2 hours by Cassini, taken using red, green and blue spectral filters, combined to create a natural-color view.

Last night's moon, Saturn, Mercury The young moon has swept past the planets Saturn and Mercury this week and still hovers not far from them, with its lighted face pointed toward them. This photo is from Tuesday evening, from Annie Lewis in Madrid, Spain. Watch for them tonight and Thursday evening, too. Submit your photo to EarthSky here!

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