Thursday 14 December 2023 07:22 pm
Thank you for reading the news about how long will planet Earth continue to exist? This date heralds its end, and now with the details.
Aden – Yasmine El Tohamy –
When we look into the future, we find that the Earth exists in a constantly evolving solar system. Thus, the fate of the Earth is linked to the evolution of the Sun and the end of its life. According to experts, the demise of the Earth due to the natural evolution of the Sun is expected to take several billion years.
Studies indicate that the Sun will gradually turn into a red giant star at the end of its life, and this will lead to an increase in its size and the intensity of its radiation. As the intensity of radiation and heat increases, water on the Earth’s surface will break down into its constituent elements and evaporate into the atmosphere. This process will cause the Earth to lose its atmosphere and make it uninhabitable.
According to the scientific magazine “Life Science”, before that happens, there are other challenges facing life on Earth. These challenges include human-induced climate change, which humans must address to maintain our current environment.
In addition, there are also other potential threats such as nuclear wars that could lead to the extinction of humans and other living organisms within a short period of time.
The death of the sun
The end of the planet is linked to the evolution of the Sun. “The Earth will likely have 4.5 billion years before the Sun becomes a big red giant and then swallows the Earth,” said Ravi Kopparapu, a planetary scientist at NASA’s Goddard Space Flight Center.
A red giant star forms in the final stages of stellar evolution, when the star runs out of hydrogen to fuel its nuclear fusion and therefore begins to die, according to the European Space Agency.
Once fusion stops, gravity takes over. The helium core will begin to compress under gravity, which will raise the temperature.
Earth’s fate
But it is likely that the Earth will not pass for 4.5 billion years. He continued: “You do not have to wait until the outer layers of the Sun reach the Earth.” The planet will be exposed to intense heat long before the Sun finishes turning into a red giant.
As the Sun warms in its dying process, the oceans will evaporate, the atmosphere will eventually disappear, and then the tidal forces caused by the Sun’s gravity will tear apart the Earth.
Approximately 1.3 billion years from now, humans will no longer be able to survive physiologically, in nature, on Earth, due to persistent hot and humid conditions. In about 2 billion years, the oceans may evaporate when the sun’s brightness is about 20% brighter than it is now, Kopparapu said.
Some life forms may survive up to this point – such as extremophiles that live near hydrothermal vents on the ocean floor, but not humans, Kopparapu added.
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