Warning: Do not contact aliens or the human race will be destroyed.

Professor Stephen Hawking has offered a chilling warning about making first contact with extraterrestrials, suggesting that if this happens, aliens would massacre humanity and take over the Earth.

Hawking believes that aliens will be wary of initiating first contact with humans from Earth, and has counseled mankind to proceed with caution. He next moved on to Gliese 832c, an extraordinarily hot super-Earth found earlier this year that is considered to be capable of hosting alien life.

Alien Contact, According to Hawking, Is Similar To Columbus’ Native American Meeting.

Hawking believes that Earthlings may one day receive a signal from such a planet, but that humans should be cautious when reacting to alien communication. He continued by implying that seeing advanced extraterrestrial life would be analogous to Columbus’ first contact with Native Americans. He brought up the fact that the meeting had been a failure.

There’s a risk extraterrestrial race will turn out to be ruthless marauders scouring the cosmos seeking planets to plunder and conquer before conquering them. This might mark the end of humanity’s existence on Earth.

Professor Hawking has already stated his reservations about contacting extraterrestrials. In 2010, he made an appearance on the Discovery Channel to discuss aliens destroying humanity.

Climate change, according to Hawking, might result in temperature spikes of up to 250 degrees Celsius.

Hawking remarked that as he has become older, he is more certain than ever that humans are not alone in the universe, and he is now leading a global effort to find out why.

More than aliens putting an end to life on Earth appears to be a concern for Hawking. He also stated that if nothing is done to address climate change, Earth will become as hot as Venus. He claimed that the Earth will turn into a “hothouse” where mankind would perish.

Hawking went on to explain how President Donald Trump’s choice to pull out of the Paris Climate Agreement might exacerbate the problem. Hawking believes the Earth has reached a tipping point when global warming will be irreversible. Trump’s plans have the potential to push the globe to the brink, with temperatures approaching 250 degrees Celsius.

Many scholars disagreed with Hawking, stating that these temperatures would not occur since it is further from the Sun than Venus and lacks Venus’s carbon dioxide-rich atmosphere.