A meteorite found in the Sahara is a rare piece of Mars' ancient crust.
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A 1,000-mile cloud on Mars may reveal physics never seen in nature
A new model suggests Mars may host ice-forming physics never directly observed before.
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Japan launches mission to bring home a piece of the Martian moon Phobos
The climax for MMX will come in 2029, when the spacecraft will attempt up to two landings on Phobos.
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Things are finally looking up for NASA's first missions to Venus in a generation
"This is great news for us. We're staffing up. We're accelerating."
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Venus' mysterious haze is actually cosmic dust
A physical model show that iron dust and sulfuric acid create the right properties.
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Europe will go it alone on Venus mission after NASA yanks radar instrument
Europe is looking inward, and perhaps to China, as the White House tries to cancel some NASA partnerships.
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After 8 years, Europe's BepiColombo mission is on final approach to Mercury
"Fundamentally, we want to learn about the origins of this planet and how it came to be like it is."
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Without new landers or rovers, it's helicopters or bust for NASA's Mars program
NASA's cost estimate for SR-1 Freedom is $2.1 billion, but that doesn't include the helicopters.
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A martian rock has lots of carbon on it, and it's not clear why
Biology could explain the find, but there are other potential explanations.
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