Mars once had an oxygen-rich atmosphere like the Earth
Using a laser device at the Gale crater on Mars, Curiosity autonomous robots discovered rocks containing manganese oxide, a compound that requires oxygen to be formed.Mo Mo found a meteorite pattern on Mars
For the first time, the robotRobots on Mars paralyzed because of computer problems
John Grotzinger, a California Institute of Technology scientist, said the incident happened when Curiosity sent radio data to Earth on March 17, US time, Space reported.