In 2018, the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) instrument onboard ESA’s Mars Express orbiter found evidence of liquid water under the ice in Ultimi Scopuli, a region near the south pole of Mars. In new research, a team of researchers from Italy, the United States and Australia measured the properties of ice-brine mixtures as cold as minus 98 degrees Celsius (minus 145 degrees Fahrenheit) to help confirm that salty...
