Geologists have calculated the age of Earth at 4.6 billion years. But for humans whose life span rarely reaches more than 100 years, how can we be so sure of that ancient date? It turns out the ...

Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved ...

Okay so I understand at a very basic level how radiometric dating works, but I have a question. How do scientists know the half-life of isotopes, when some of them are measured in millions or billions ...

we know we can touch rocks that are 1.7 billion years old.

All the Latest Game Footage and Images from Radiometric Dating A visual novel/dating simulator where you can date rocks! You play as a geology student who gets transported to a magical world during ...

Modern radiometric dating of the Siloam Tunnel in Jerusalem shows that it was excavated about 700 years before the Common Era, and can thus be safely attributed to the Judean King Hezekiah. This is ...

Potassium-argon dating of igneous and metamorphic rocks with applications to the basin ranges of Arizona and Sonora / P.E. Damon -- A comparison of the isotopic mineral age variations and petrologic ...

Lead-lead (Pb-Pb) dating is among the most widely used radiometric dating techniques to determine the age of really old things, such as the age of the Earth or the Solar System. However, recent ...