“Mars is life insurance for life collectively,” he told Fox’s Jesse Watters on Monday.
“The sun is gradually expanding, and so we do at some point need to be a multi-planet civilization because Earth will be incinerated.”
Although the Sun is currently less than halfway through its life and is predicted to live for another five billion years, NASA has long cautioned that the Sun will ultimately run out of energy.
The study, which was published in Nature Geoscience, found that scientists developed year-by-year models to forecast changes in the composition of gases and climate.
To predict the end of the world, they ran over 400,000 simulations.
They discovered that these shifts will be fuelled by the sun’s increased brightness, which will make Earth’s climate unstable.
A mass extinction would occur on Earth as a result of oxygen depletion, according to the study, which was published in Nature Geoscience.
