LIPID BIOMARKERS

In the southeast of Spain, scientists dug deep to learn about the area's history. They studied a 14-meter-long sample of sediment from a place called San Juan de los Terreros. This sample held secrets from the last 7, 800 years. The team used different methods to analyze the sample. They looked at

First, imagine rocks that look like tiny fingers sticking out of hot springs. These are called digitate siliceous sinters. They form when hot, silica-rich water cools and hardens. Scientists are interested in these rocks because they look similar to some rocks found on Mars. The big question is, can