Scientists using NASA’s Mars-orbiting MAVEN spacecraft discovered a mysterious cloud of dust hundreds of miles above the planet’s surface -- and no explanation for how it got there.
Amateur astronomers gazing at Mars discovered gigantic plumes soaring more than 125 miles above the planet’s surface, a phenomenon that so far defies explanation.
Mars' atmosphere is often viewed as frigid and unchanging, but in studies of the red planet's aeolian processes, nothing could be further from the truth -- particularly where Martian dust devils are concerned. Continue reading →
This summer ESA's Venus Express spacecraft daringly dipped into the upper atmosphere of our neighboring planet during a risky but successful aerobraking maneuver. Continue reading →
When Comet Siding Spring made its historic close approach with Mars last month, the icy interloper showered the Martian upper atmosphere with meteors -- and several robots were on hand to monitor the shower's effects. Continue reading →
It's as if Titan is getting festive for Hallowe'en -- astronomers have detected a ghostly glow around the the north and south poles of the Saturnian moon that had previously gone undetected. Continue reading →
If you step outside before dawn during the next week or so, you might be able to see bright meteors streaking through the sky.
Early results from NASA’s recently arrived MAVEN Mars spacecraft show an extensive, tenuous cloud of hydrogen surrounding the red planet, the result of water breaking down in the atmosphere.
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