Nasa : Signs of Life on Mars!

Nasa : Signs of Life on Mars!

Mars and Venus are our closest neighbors in the solar system. If Mars is in a particularly favorable position, it is only 55.6 million kilometers away from us on its elliptical orbit. Then we see it as bright red with the naked eye standing in the night sky. Astronomers observed strange processes on Mars as early as the 17th century. Due to the change in color and Earth-like surface structures, it was soon assumed that life existed on Mars.

Could Mars support life? In this episode , we run through five intriguing lines of evidence that the red planet was not always as desolate as it appears, and may even be habitable today.