According to Brian Cox, English physicist and former musician, the civilization faces the biggest threat in the form of 'human stupidity'.

The pop star-turned-physicist said that the chance of 'catastrophic climate change', 'asteroid impact' and 'crop disease caused by a loss of biodiversity' could be dangerous for human existence.
According to the 46-year-old, the world leaders and several organizations that tackle the threat need to take more effective steps.

Cox said, "The problem with these points is that if you make them carelessly you end up sounding like Morrissey in his teenage years. They're so obvious that they become clichéd positions to take, but actually they're not clichéd positions".

He also said that when an individual thinks about such things, the person ends up with head in hands. Cox asked people to imagine a situation, where an alien from other world came and had a look at them.

The 46-year-old warned that it will become very difficult for humans to survive, if humans sit here on earth and don't think about universe. He wants that humans should go on the Red Planet for the same purpose they went to the Moon.

In a show of Radio Times magazine, Cox has spent about three hours in a spacesuit. The former musician admitted that it is not an easy task to be an astronaut. According to him, he had broken his ribs and it had taken him about five months to recover.

The physicist said about his career on small screen that television is very important for every person, but it is not possible for him to be a TV presenter.

Cox stated that he will continue to encouraging the governments and other leaders to do the right things on tackling the threats. According to him, the governments should invest in research and education.