A ring could have also contributed to one of the coldest periods and biggest mass extinction events in our history. We know what Earth looks like. Famously nicknamed the “pale blue dot” by Carl Sagan, ...
Along with the disturbance it caused to Earth's magnetic field as it passed us, countless particles from the cloud were funnelled down into the atmosphere, where they produced auroras. Based on the ...
Polynesian explorers covered more than a third of the Earth’s surface centuries before the compass ... So how did these people find their way across vast empty ocean to settle the islands that dot the ...