Scientists have studied the existence of water on Mars for over a century. A little black rock found in Indiana proved the ...

Geology involves studying the earth’s crust, its layers, and their history. Youth learn to identify Indiana rocks, minerals, and fossils. Steuben County 4-H record sheets are due on/before the last ...

Indiana. From there, Perseverance will explore rock ridges that could represent an ancient hydrothermal system, in which hot water oozed around rocks fractured when a big meteorite hit Mars.