Learn more about the colorful and shiny stones that were turned into tools as many as 40,000 years ago, which were sometimes ...

Photo: Gregor Bader The Mgwayiza Valley in Eswatini A new study has shown that as early as the Stone Age, people in Africa ...

Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the ...

Believe it or not, there are many gravel options you can use in your yard and garden. Here are some of the most popular types ...

Perseverance cracked open a tricky Mars rock to find water-related minerals, then zoomed across the landscape to make its ...

Rocks from the Hadean Eon, the first period in the geological timescale, have been dated in Québec. These are some of the ...

Grounding system of an electrical device is most needed for the safety of power system purposes. This is due to the need to provide a low impedance medium for fault currents or electromagnetic ...

Object Details Description A range of natural materials associated with textile production in Madagascar, including natural and aniline dyed silk threads, cotton threads, and silk cocoons. (9 bags) ...

Parent materials Soil minerals form the basis of soil. They are produced from rocks (parent material) through the processes of weathering and natural erosion. Water, wind, temperature change, gravity, ...