Stephen Hawking at the 2015 BAFTA film awards ceremony in London.

Stephen Hawking is one of the most influential minds of the 20th and 21st centuries. But besides theoretical physics, he also knows how to grab a headline.

Hawking says humanity only has a century left on this planet before life as we know it comes to an end, as he relates in a coming BBC2 television special, entitled “Expedition New Earth.”

The special, scheduled to air in June, is part of a reboot of the long-running BBC series called “Tomorrow’s World” focused on science, which was canceled 14 years ago but is making a high-profile reappearance this summer.

Climate change, asteroids, disease and overpopulation are all problems that will overcome humanity on Earth in the coming 100 years, according to reports based on the special.

Hawking and one of his former students will reportedly travel the world on the hour-long special to explore how life beyond the Earth may be possible.

The timeline is somewhat of a reversal for Hawking, who is known for his big predictions on the future of Homo sapiens. Hawking made a speech at Oxford University in November, which held that humans had a full 1,000 years left on this planet.

The noted physicist had previously stated that science itself would be humanity’s undoing. He said last January that there is “near certainty” that scientific advances would end human history, either through nuclear war, global warming, artificial intelligence, genetically-engineered viruses, or other unforeseen developments.

“Most of the threats we face come from the progress we’ve made in science and technology,” he said at the time.

But humanity had as long as 10,000 years left on the planet before that would happen, he said at that point.

Space colonization is the hope for our species, he added. By spreading out to other planets or solar systems, humanity would be able to survive, he said.

Hawking is not alone in his fears. Another iconic name in science, Elon Musk, has expressed similar worries. Musk contends that another world war is inevitable, and the “window” for Mars colonization would be over once the international community is no longer working cooperatively to work toward that goal, he said in late 2015. Musk is also one of the foremost players in pushing toward exploration of space, especially Mars, through his company SpaceX.