Question

Scientists estimate that we are about halfway through the lifetime of the Sun. Given that the Sun is estimated to be about 5 billion years old, this means that the Sun’s lifetime is expected to be what length of time?

- 20 billion years
- 10 billion years
- 5 billion years
- 4.5 billion years

Answer 1

[AI-generated answer — Bot GPT 3.5]

- 10 billion years