4.54 billion years ago · approximate date
Earth takes shape
A young planet gathers from dust and fire around a new star.
Earth grew from the disc of rock and gas circling the early Sun. Impacts and the decay of radioactive elements kept it so hot that the surface stayed molten and no water could last.
- Period
- Hadean
- Earth's history already passed
- 0 percent
- 4.54 kilometres
- 4.54 kilometres from the end
- One day
- 00:00:00
- One year
- January 1, 00:00
Source: NASA Astrobiology