JAKARTA – Doomsday frequently associated with the impact of a very large asteroid or comet, likely to kill many or all life on Earth.
Compiled from ScienceFocus, Wednesday (20/7/2022), but the collision of an asteroid or comet with Earth is considered not to have the energy to destroy Earth.
This was conveyed by radio astronomy expert from the Jodrell Bank Center for Astrophysics at the University of Manchester, Dr Alastair Gunn. In fact, a powerful supernova explosion will also not occur in a few light years.
However, orbital instability in the Solar System could eventually lead to a catastrophic collision between Earth and one of the other terrestrial planets – Mercury, Venus, or Mars.
However, according to Alastair, the probability of that happening is only about one percent over the next five billion years or so.
So, what is the most likely scenario for the complete annihilation of the Earth or the apocalypse? Swallowed by the Sun as it turns into a ‘red giant’ star.
When the Sun’s thermonuclear fuel, hydrogen, is depleted in its core, its outer envelope will begin to expand. In this phase of evolution, the Sun will lose a significant amount of mass, which means Earth’s orbit will also expand.
However, current theory suggests the new orbit will not be large enough for Earth to avoid interaction with the Sun’s expanding lower atmosphere.
This means Earth will likely still be vaporized by a growing star.
“But don’t worry, Earth’s scorching destruction is still a long way off: some 7.59 billion years in the future, according to some calculations,” said Alastair,
According to him, if the Earth somehow managed to survive and keep orbiting around the bloated red giant Sun, the decay of Earth’s natural orbit would mean it would merge with the remnants of the dead Sun.
“Eventually, this fate will happen in about 100 billion billion years. Not bad considering the Universe is only about 13 billion years old now,” he said.
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