1. The Sun's Expansion Smokes Us Out In 1Billion Years
is currently enjoying the middle portion of its life cycle but as it reaches
the end of its cycle (in an estimated 4-5 billion years) it sun will expand
into a red giant about the size of the earth’s entire orbit. This expansion
will almost certainly engulf the Earth, or at the very least scorch our planet
Our fate however, is decided much sooner than that. As the
sun slowly begins to expand over the course of millions of years, the
temperature of our planet will increase until it is no longer capable of
supporting life. Scientists believe that could occur as early as 1 billion
years from now - much sooner than the estimated 4-5 billion years it will take
for the sun to expand far enough to swallow our planet.
If mankind can survive another billion years on this rock
they will need to prepare for life elsewhere as the increasing temperatures
evaporate all of Earth’s rivers, lakes, and oceans and cause a greenhouse
effect that only the hardiest of microorganisms will be able to survive.