Dust Storms May Be Linked To Erosion Of Mars’ Atmosphere

Don’t be surprised if you hear the god of war’s name dropped in casual conversation at the local burger joint this summer. 2018 promises to be the Year of Mars. On July 31, Mars will come closest to Earth since 2003 during its perihelic opposition. Every 15 or 16 years, Mars reaches perihelion (closest to the…
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See What Comets And Blizzards Have In Common

If you’ve ever driven through a snowstorm you know how disorienting it can be. Millions of flakes rebounding off your windshield. White-out conditions. It’s not so different for a spacecraft orbiting a comet. The European Space Agency’s Rosetta mission had a similar experience, for more than two years, as it flew alongside Comet 67P/Churyumov–Gerasimenko between 2014…
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Ancient Dust In Remote Galaxy Ties Us To Our Cosmic Beginnings

To make planets and people you need dust. That’s what we’re made of. Dust. But mixed and tended in ways so remarkable our bodies give that dust passion and voice. Dust comes from aging and exploding stars. Supernovae are the most spectacular but not the only dust-makers. As stars like our sun age, they puff…
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Heavenly Ho Ho Ho! From A Cosmic Santa Claus

If you look closely, you might be able to picture the face of Santa Claus in these festive pink clouds. You’re seeing two overlapping glowing nebulas called NGC 248 in the Small Magellanic Cloud (SMC), a small galaxy that orbits the Milky Way like a planet orbit the sun. Intense radiation from hot young stars in the center…
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Jupiter Joins The Zodiacal Light Before Dawn

To calm my mind on Election Day morning, I took off before dawn for Lake Superior. Just a quick hop to a beach 10 minutes from home. There along the silent shore stood a slanted feather of comet dust dotted by the bright planet Jupiter. Winds were light, so Jupiter left a gleam line on…
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