Earth’s Expiration Date: When Will the Sun Make Life Impossible?
The Sun is getting brighter. In roughly a billion years it will make Earth too hot for complex life, long before it becomes a red giant. Here is how the end of life on Earth will unfold, step by step.
When Will the World End According to Science? The Real Timeline
Science gives three answers to when the world will end: this century only if we cause it, about 1 billion years when the Sun makes Earth too hot, and about 10^100 years when the universe runs down.