Activity for IlludiumPu36
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Habitation of early Earth Based on various methods of geological dating, particularly radiometric analysis, Earth is estimated to be around 4.5 billions years old. This is around the time the Earth's Moon was thought to be created by the impact of Theia, a Mars sized planet, or through a series of impacts. These impacts w... (more) |
— | over 6 years ago |