About 3 to 4 billion years ago, the Martian environment was completely different from the cold inhabitable desert it is today. At that time, the Martian environment was much warmer with a habitable atmosphere that might have had rainstorms that could have supported basic life.
The study was conducted by a team of researchers from Purdue University, Indiana in the United States and presented by Professor Briony Horgan at the Goldschmidt Geochemistry Conference in Barcelona, as reported by Phys Org. The researchers compared data from Earth and data collected by NASA CRISM spectrometer and from the Curiosity Rover.
The NASA CRISM spectrometer is still orbiting the Red Planet and has been able to identify locations where there was water by detection of surface chemicals. The data showed that 3 to 4 million years ago ... Read even more