Death is inevitable for individuals and also for species. With help from the fossil record, paleontologists are piecing together what might make one creature more vulnerable than another.
By studying the magnetic record left behind in earthly rocks, researchers found a magnetic field reversal - where magnetic north became magnetic south - lasting only 2 centuries.
Do your skies look hazy? Are your sunsets very orange, or layered-looking, or does the sun or moon look orange while high in the sky? If you're in the northern U.S. or Canada, the reason is still wildfire smoke.
So go ahead and get scared at the new movie "The Meg," but don't worry. Scientists have officially debunked the myth that megalodon sharks still exist.
What happens in California doesn't stay in California. This animation, made from satellite data, shows carbon monoxide from the state's massive wildfires drifting eastward all the way across the U.S.
A new computer modeling study shows that - some 4 billion years ago - a barrage of incoming debris from space likely formed what we know today as Earth’s oldest rocks.