What will happen to Earth when the Sun becomes a red giant

≈5 billion years

The Sun will become a red giant

When the Sun’s core exhausts its hydrogen, the Sun will expand into a red giant. Mercury and Venus will be vaporized, while Earth and Mars will become uninhabitable; Earth may also be destroyed.

Cape Town more than halved its water use

During the 2017–18 crisis, restrictions cut daily water use by more than half, to about 500 million litres by March 2018. Dam levels had fallen to 15–30% of capacity, but lower use postponed the feared “Day Zero” shutdown. Rains starting in June then helped dams recover.

Neanderthal DNA survives across humanity

~20% of the Neanderthal genome

A person whose ancestry lies beyond sub-Saharan Africa may carry about 2% Neanderthal DNA. Across the modern human gene pool, roughly 20% of the Neanderthal genome appears to remain.

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What will happen to Earth when the Sun becomes a red giant

The Sun will become a red giant

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