Did you know that "megalith" means "big rock", which is certainly a good description of Stonehenge?
Did you know that there is some pretty strange stuff in space?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Ooids
xOoids : Small (< 2 mm), spheroidal, layered sedimentary grains, usually composed of calcium carbonate, but sometimes made up of iron- or phosphate-based minerals.
In dark, rich soils on every continent, microbes dealing with the effects of climate change aren't accelerating global warming the way scientists had predicted, a study by researchers at the University...Read more