As far as we know, Earth is the only planet in the solar system where life exists. Scientists are eager to find out if there are other planets where biological life is possible.
One of the closest planets to Earth is Mars. Scientists have discovered that in antiquity, billions of years ago, the Red Planet was very similar to Earth. Based on the evidence the researchers found, Mars likely had an atmosphere, vast oceans, rivers, and lakes. In general, it met all the necessary conditions for the existence of life.
Probably, when Mars was covered in greenery with liquid water on the surface and an atmosphere that protected it from the harsh conditions of space, Earth was a planet where life was impossible.
Everything changed suddenly about 2.5 billion years ago. Mars lost its
atmosphere and went from being a planet that could have developed life
to a frozen desert like the one we see today. Its oceans disappeared and
its rivers and lakes evaporated. Today, scientists are exploring the
remains of these reservoirs....<<<Read More>>>...