As you may have noticed, above you will find words for "The most recent of the Martian geologic epochs, from approximately 1.8 billion (1800 million) years ago (the end of the Hesperian epoch) to the present.". Hover the mouse over the word you'd like to know more about to view its definition. Click to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.