Flexi Says: Mars is a cold, dry planet with over 95% carbon dioxide in its atmosphere. There is no known life form on Mars discovered by humans as yet. However, according to the samples and data collected by the Curiosity Rover, which is a nuclear-powered laboratory that roves around Mars, there is evidence that suggests that the conditions on Mars, in the planet's distant past, were favorable for supporting life. Scientists speculate that the Gale Crater on Mars might have been a lake filled with water for hundreds of thousands of years and might have supported life, according to the data collected.
