Researchers used three of the craft’s instruments to sample sand dunes from Mars’ Utopia Planitia, a low-lying region in the northern hemisphere. In the region’s distinct, salty cracks, researchers believe they have found trace evidence of water from much more recently than previously discovered.
“We inferred that these dune surface characteristics were related to the involvement of liquid saline water formed by the subsequent melting of frost/snow falling on the salt-containing dune surfaces,” said Qin Xiaoguang, a geophysicist at the Chinese Academy of Sciences.
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Denne historien er fra Issue 178-utgaven av How It Works UK.
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THE POWER OF WATER
We're hooked on fossil fuels. But hydroelectric power is becoming an increasingly important replacement for coal and oil
EXPLORING THE MOON'S CAVES
Earth's rocky neighbour is home to a network of unexplored caves, and scientists are keen to take a peek inside
HOW TO ELECT THE PRESIDENT
The campaigns, votes and elections that put someone in America's most powerful office
WHAT IS MORNING SICKNESS?
Why some pregnancies can cause nausea and vomiting
20 WEIRDEST SCIENCE MYSTERIES
From dark matter to deep-sea crabs, science still can't fully explain these strange quirks of nature
THE TRIANGULUM GALAXY SHINES IN A NEW HUBBLE IMAGE
A nearby galaxy is shining with star formation in a new image from the Hubble Space Telescope.
The world's fastest charger fully powers smartphones in five minutes
Scientists have revealed the fastest battery-charging technology in the world for smartphones, which can fully charge a smartphone in less than five minutes.
Real-time brain stimulation slashes Parkinson's symptoms by half in trials
Brain stimulation that rapidly adjusts in real-time can dramatically reduce Parkinson’s symptoms, an early trial suggests.
The hottest ocean temperature in 400 years threatens the Great Barrier Reef
The Great Barrier Reef is facing the hottest sea surface temperatures in four centuries.
Massive medieval coin hoard worth about 150 sheep' discovered
Archaeologists in Germany have unearthed over 1,500 medieval silver coins after a citizen noticed what looked like ‘small metal plates’ while digging during a construction project.