The atlas · Origins · The early Earth
Outline · being written
The faint young Sun
Why the early Earth was not frozen solid when the young Sun shone more weakly, an open puzzle.
- Page type
- A lesson, led by a working diagram
- Collection
- Origins, the early Earth
- When
- About 4,000 million years ago to 2,500 million years ago, in the Archean. The finished piece will give dates from its sources.
- Status
- Planned and outlined. Every fact in it will be checked against a named source and listed on Sources before it goes up.
Read alongside
- The Sun, our star Lesson · outline
- The greenhouse effect Lesson · outline
- The first billion years Lesson
- The first oceans Lesson · outline
- The oldest rocks Explorer · outline
- Where the water came from Lesson · outline