The is strong evidence that alien life is existing beneath the surface of the red planet.

The quest to find life on Mars has been popularized by movies and pop culture. There have been numerous discoveries and evidence over the years hinting about life on Mars.

Former U.S. President Bill Clinton further strengthened these claims through his "life on Mars" speech back in 1996. Now, new research results are pointing towards the plausibility of life on the arid world.

The probability of alien life thriving on Mars

A team led by researcher Rebecca Mickol has proved that micro-organisms can indeed thrive on Mars, Engadget reported. 

Mickol and her team grew minute organisms called microbes inside test tubes. These test tubes were subjected to an environment simulating the harsh and extreme conditions of Mars.

Their test concluded that microbes could survive despite Mars' life-threatening weather. The tiny organisms in the test tubes were found alive after 21 days under extreme conditions.

While these alien life-forms are not like the "little green men" pictured in Hollywood and pop culture, nonetheless, strengthens the theory of possible alien life on a planet other than our own.

Meanwhile, Stock News USA has reported that some lifeforms that populated Earth centuries ago have been found on Mars.

These microorganisms called methanogens most likely populate the red planet. Traces of Methane have been discovered on the red planet.