It was hypothesized that the streaks were formed by water. Since Mars has a cold climate with an average temperature of -67 degrees Fahrenheit, the scientists reasoned that the streaks of water were salty because salt lowers the freezing point of water. The water would still remain a liquid even at the freezing temperatures.
With the recent discovery of hydrated salts in the streaks, it can now be concluded that the streaks are definitely formed by water. The discovery was made the help of the MRO spacecraft’s spectrometer, a device that measures wavelengths of light. With this device, types of minerals on Mars’s surface are able to be identified based on the wavelengths of light that they absorbed. The device identified salts called perchlorates
With the recent discovery of hydrated salts in the streaks, it can now be concluded that the streaks are definitely formed by water. The discovery was made the help of the MRO spacecraft’s spectrometer, a device that measures wavelengths of light. With this device, types of minerals on Mars’s surface are able to be identified based on the wavelengths of light that they absorbed. The device identified salts called perchlorates