Our solar system is dying. But how and when will it happen? Scientists have deployed the technology and the results are in.
The laws of thermodynamics have made it very clear that everything in the universe will die one day. And neither we, our planet, the sun, or the solar system are any exception. It is very difficult to imagine that the solar system, which has existed here for 4.5 billion years, will one day collapse. It’s a terrifying thought, but scientists say it’s inevitable. Advanced technology has been deployed and extremely expensive instruments have been used to perform radioactive dating on other objects believed to be the same age as the sun. This data is then added to prediction models, a software built by techies to calculate the half-life and life expectancy of celestial bodies based on the radioactivity signature. Institutions such as NASA can do this with very high accuracy. But the question that remains is how will the solar system die and when? Read on to find out.
The Death of the Solar System
Incidentally, the first step of the death of the solar system would be the death of the Earth. There will be some major changes in the next billion years. The sun rises slowly. Today it is 30% brighter than when it was formed. Because of this, the habitable zone of the solar system has easily fallen where Earth is.
But as the sun uses up all of its hydrogen and turns to helium for nuclear fusion, its molecular weight will increase the temperature, size of the core and the rate of energy production of the sun. As a result, the earth will begin to warm up and the water will begin to evaporate. This marks the end of all life left on the planet.
Phase two begins after that, because due to the increasing gravitational pull of the sun, the rocky planets will become destabilized in their orbits. As a result, there is a good chance that Mercury will collide with Venus or that Earth will collide with Mars. And if this somehow doesn’t happen, in about five billion years the sun will turn into a red giant, which will grow so large that it will envelop the inner planets, including Earth. Yes, the sun will grow so large that it will reach the earth.
But when he turns into a red giant, he also loses mass and energy and his gravity. The gaseous planets will thus move far from the sun and their orbits will continue to increase.
Ultimately, the sun will turn into a white dwarf in about seven billion years. It will still have the same mass, but will only occupy half the Earth. And then it will spend eternity cooling down. At this point, gravity will be further affected, pushing the remaining planets further out into space.
The solar system can survive for hundreds of billions of years unless another star passes by. The likelihood of that would increase as the size of the solar system doubles. A passing star would draw all the remaining planets towards it, as the little white dwarf would be helpless to fight it. The remaining planets will either become part of that galaxy or will be thrown into space to become free-floating planets and that will mean the death of the solar system.