Slashdot Mirror
Evidence Detected of Lake Beneath the Surface of Mars (cnn.com)
For decades Mars has teased scientists with whispers of water's presence. Now they have some solid evidence. From a report: The Italian Space Agency announced Wednesday that researchers have detected signs of a large, stable body of liquid water locked away beneath a mile of ice near Mars' south pole. The observations were recorded by the Mars Advanced Radar for Subsurface and Ionosphere Sounding instrument -- Marsis for short. "Marsis was born to make this kind of discovery, and now it has," says Roberto Orosei, a radioastronomer at the National Institute for Astrophysics, who led the investigation. His team's findings, which appear in this week's issue of Science, raise tantalizing questions about the planet's geology -- and its potential for harboring life. CNN elaborates: Between May 2012 and December 2015, MARSIS was used to survey the Planum Australe region, which is in the southern ice cap of Mars. It sent radar pulses through the surface and polar ice caps and measured how the radio waves reflected back to Mars Express. Those pulses reflected 29 sets of radar samples that created a map of drastic change in signal almost a mile below the surface. It stretched about 12.5 miles across and looked very similar to lakes that are found beneath Greenland and Antarctic ice sheets on Earth. The radar reflected the feature's brightness, signaling that it's water. "We interpret this feature as a stable body of liquid water on Mars," the authors wrote in the study.
>> Evidence Detected of Lake Beneath the Surface of Mars (cnn.com)
The sound of Jetskis was unmistakable and annoying, even from several million miles away.
The original paper in Science: http://science.sciencemag.org/...
Space.com: https://www.space.com/41272-ma...
Science News: https://www.sciencenews.org/ar...
CNN: https://www.cnn.com/2018/07/25...
> Mars has teased scientists with whispers of water's presence.
This is humorously bad anthropomorphizing. Mars is "teasing" and "whispering" to scientists about how wet it is?
Arrr matey, sounds like ye be tryin to hide treasure!
"I can't absolutely prove it's water, but I sure can't think of anything else that looks like this thing does other than liquid water," says Richard Zurek, chief scientist for the Mars Program Office at NASA's Jet Propulsion Laboratory, who was unaffiliated with the study.
Mars. I hear the moon's restaurants have great food but no atmosphere.