Artwork showing the earth now (right) compared to how it might have looked around 2.4 billion years ago, before the great oxygenation event. The continents back there bear no resemblance to their modern counterparts; the atmosphere would have been thicker. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / Garlick, Mark |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |