Rosetta Comet Mission To End In Dramatic Crash Landing

Even as we scrunch closer to our laptops in anticipation of Juno’s arrival at Jupiter tomorrow, another mission will soon be concluding. After two years in close company with a dusty comet, the Rosetta mission will end in dramatic fashion with a planned crash landing on the comet’s surface on September 30. Hard to believe it’s…
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Verdict In On Ceres Bright Spot — It’s Salt

Salt and butter. Ingredients essential to a happy life. At least one of those you’ll find on Ceres, and it ain’t butter. According to a new study from scientists on NASA’s Dawn mission published June 29 in the journal Nature, the dominant mineral of the mysterious “bright spot” in Ceres’ Occator Crater is sodium carbonate, a…
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Hubble Makes Movies Of Jupiter’s Giant Auroras

Hubble Space Telescope time-lapse of auroras photographed in ultraviolet light over Jupiter’s north polar region on May 19, 2016. The “hot spot” at right is caused by material from Io accelerated toward Jupiter by electric and magnetic fields. Credit: NASA, ESA, J. Nichols It’s been pretty quiet here at mid-latitudes the past month as far as auroras go.…
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Care For Tea With ‘Milk’? Fill Up At Sagittarius

I’m a tea drinker. Two cups a day keep my engine humming. On summer nights, the Teapot of Sagittarius stands at the ready to tip a different sort of cup. One that provides a thick brew of Milky Way stars, sooty interstellar gas clouds and sparkling star clusters. Sagittarius is a centaur with the body and four…
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Juno Dives To Jupiter’s Doorstep

Jupiter may be sinking in the west from here on Earth, but it’s looming larger than ever in the eyes in NASA’s Juno spacecraft. The probe has a July 4 appointment with the giant planet when it will pass just 2,900 miles about the planet’s cloud tops. Once settled into orbit it will study Jupiter’s…
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