Someday the Earth will become inhospitable to anything resembling life as we know it. At this point, the Earth will begin to resemble the planet we saw 4 billion years ago. A similar fate may await the inner planets of our solar system when the Sun becomes a red giant and expands to Earth's orbit in five billion years.
Suns
It is widely known that our planet as a planet will not survive the expansion of the suns into a full red giant star. Life on Earth will most likely not end until billions of years have passed. If we could bring the world from the Sun to this, not only would we be able to avoid being swallowed up, but life on our planet could flourish for billions of years longer than if we simply did nothing.
Venus
Today, our planet will become more like Venus than Earth, and completely unsuitable for life on the surface. The world will be completely stripped, simultaneously pushing away from the Sun in its orbit. At this point, the sun will swell, vaporize the Earth's atmosphere, and char what is left of our surface.
Subgiant
As the Sun moves from a main-sequence star to a subgiant, and then from a subgiant to a full helium-burning red giant, nothing in the world can withstand this solar onslaught. When the Sun becomes a true red giant, the Earth itself may be swallowed or swallowed, but will surely be fried like never before. Our Sun will later die, becoming a white dwarf, and the world will remain only a fried remnant, floating in space in its orbit around the stellar corpse.
Black Dwarf
After the Sun becomes a black dwarf, if nothing is ejected or collides with the remnants of the Earth, gravitational radiation will eventually cause us to spiral, tear apart, and eventually consume the rest of our Sun. The Sun, the Earth will be bombarded with solar radiation of such intensity that the liquid water of the oceans and seas will be carried away.
Vapor
As the seas cool and the atmosphere fills with water vapor, the influence of greenhouse gases will take over, causing catastrophic increases in global temperatures. When the atmosphere becomes saturated with water, the water in the upper atmosphere is bombarded with high-energy sunlight, which separates the molecules and allows the water to escape in the form of hydrogen and oxygen, eventually bleeding us out. planet. water. The ozone layer, which is made up of oxygen, will be depleted, exposing Earth's and Earth's oceans to high levels of ultraviolet light and heat from our Sun.
Burning Hydrogen
When the Sun stops burning hydrogen in the solar core, Mars will be in the habitable zone, and our planet will be too hot to hold water on the surface. Once our world becomes too hot to support life, Mars will reach a temperature that will make it habitable.
Five billion Years
In another five to seven billion years, this is exactly what will happen to the world, as the Sun will completely run out of hydrogen in the solar core. According to the Cornell University website, the Sun will actually expand when it runs out of hydrogen. will burn, and when it does, it will engulf the planet. The sun slowly expands and becomes brighter, and over the next billion years, the sun will eventually dry out the earth, leaving the earth warm, brown, and uninhabitable.
600 million years
In 600 million years, the Sun will also begin to burn the Earth as the Sun gets hotter and hotter due to its shrinking core.
Not only that, but Earth's atmosphere would be burned up, opening up the planet to deep space. Eventually, the much slower rotation will spin out of control, evaporating all of our planet's water and ending life as we know it. Perhaps only a handful of simple organisms will survive the heights of cloud tops, but life as we know it will end on Earth. Ozaki and Reinhard estimate that within a billion years, carbon dioxide levels will be so low that photosynthetic organisms, including plants, will not be able to survive and produce oxygen.
Billion Years
A billion years from now, Earth's atmosphere will have very little oxygen, making it unsuitable for complex aerobic life. Earth's atmosphere will maintain high levels of oxygen for the next billion years before suddenly returning to levels similar to the low levels that existed before the so-called Great Oxidation Event about 2.4 billion years ago, the researchers said. Some believe our planet will be desolate in less than a billion years, as interactions between the sun and rocks, oceans and plate tectonics will dry the planet faster. As the sun gradually rises, more water evaporates from the Earth's surface into the atmosphere, where it traps extra heat from the planet.
Wally Broker pays special attention to the so-called aerosol approach: it scatters so much sulfur dioxide in the Earth's atmosphere that, turning into sulfuric acid, it will blur a fifth of the horizon and reflect 2% of the sun's rays, buying the Earth at least one some wiggle room, with heat point of view.
