Earth May Have Had a Ring Like Saturn Once
I f astronomers had been walking the Earth 466 million years ago, they may have had something special to see. The moon and ...
Smithsonian Magazine20h
Did Earth Once Have a Ring Like Saturn? Geologists Find Evidence for a Halo of Orbiting Space Rocks 466 Million Years Ago
A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, ...
How A River Changing Course Led People To Form The First Governments
People in ancient Mesopotamia depended on rivers. But rivers sometime moved, imposing stress on communities. Research shows ...
ABC723h
SoCal to see morning clouds, cool temperatures Thursday
LOS ANGELES (KABC) -- Temperatures are staying cool in Southern California on Thursday but the weekend will bring a warmup even as the first official day of fall arrives. Los Angeles and Orange ...