When was the first sunrise on Earth?
19 July 2023
This is a question of how we define “Earth”, say our readers, but we also need to consider when light from the young sun could have pierced Earth’s atmosphere
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Found 3 results for dwarf planet
Could Jupiter ever ignite into a star?
30 October 2019
Jupiter is big enough to be a star, so could it ever become one? The answer lies in knowing how a star forms, as readers explain
Nudge factor
23 August 2017
My 8-year-old son is very worried about Earth being destroyed by the sun when it becomes a red giant billions of years from now. I have tried to comfort him by suggesting we could shift Earth's orbit by hurling asteroids towards the planet on trajectories...
