Have you heard that years and years ago, Mars looked exactly like Earth does now. With clouds and oceans. It probably had animals and humans, or at least, something like us. Now, it can’t produce the same stuff that it did in the past to maintain life. Mars is the fourth planet from the Sun, and the second smallest planet in the whole solar system. It is often described as the "Red Planet" because it has chemicals that makes it red. This gives the planet a reddish appearance. Scientists have put rovers with cameras, specialized things such as lasers, and many other items on them to see any lively activities on Mars.
