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Astrophysicist explains terrifying timeline for how Earth will be destroyed
AOL.com • • science
Key Points:
- Astrophysicist Geraint Lewis predicts that in about three billion years, the Andromeda galaxy will collide with the Milky Way, creating new stars but ultimately disrupting our solar system.
- Around the same time, the sun will expand as it burns helium, eventually engulfing Mercury, Venus, and Earth, making the planet uninhabitable.
- To survive, any remaining humans would need to leave the solar system or even the Milky Way, but accelerating cosmic expansion due to dark energy will isolate galaxies from each other.
- In approximately 10 trillion years, star formation will cease as the universe runs out of gas, leaving only red dwarf stars that are unlikely to support life due to their instability.
- Ultimately, in about 100 trillion years, the last star will burn out, and the universe will become dark and lifeless.
