Sign of Life On Mars?
There is hope that soil samples obtained from the planet could contain signs of life as new study shows that a crater found on the surface of Mars was the location of an ancient lake. Previous research suggested that the Jezero crater may have once been a lake, and a new study published on Friday in Science Advances supports that theory. Researchers from UCLA and the University of Oslo came to the conclusion that the crater eventually filled with water, depositing sediment layers on the floor. The lake drained, and a delta was formed by the river's transported sediments. The existence of these lake sediments had long been suspected from satellite images, but ground-penetrating radar is the first to confirm it.
The discovery gives scientists optimism that they may discover proof that extinct life once flourished on the now-desiccated Red Planet once Perseverance's geological samples from the crater are returned to Earth. The journal Science Advances published the researchers' results on January 26.
“Since, in the long run, every planetary civilization will be endangered by impacts from space, every surviving civilization is obliged to become spacefaring--not because of exploratory or romantic zeal, but for the most practical reason imaginable: staying alive... If our long-term survival is at stake, we have a basic responsibility to our species to venture to other worlds.” ― Carl Sagan, Cosmos (Space Exploration)
Insights From ‘Perseverance’:
“Earth is a small town with many neighborhoods in a very big universe.”
― Ron Garan, from The Orbital Perspective: Lessons in Seeing the Big Picture from a Journey of 71 Million Miles