The NASA's astronaut and associate administrator, John Grunsfield, confirmed that there is water on Mars. “Our quest on Mars has been to ‘follow the water,’ in our search for life in the universe, and now we have convincing science that validates what we’ve long suspected,”, he said. The streak lines seen on Mars suggest that there is water on the planet. The NASA scientists' MRO noticed the hydrated salts that prove that liquid water flows on Mars. Before the discovery, it was thought that there is ancient frozen water, however there is an evidence now that the water flows on Mars intermittently.
The discovery of water on Mars is very important for science. The NASA scientists used a few spaceships and years to find out whether there is water on the "red planet". The main goal was to find resources on other planets in order to support life in the future.
Bibliography:
https://www.nasa.gov/press-release/nasa-confirms-evidence-that-liquid-water-flows-on-today-s-mars
