Earth Matters

Record-breaking rainbow lasts for 9 hours

China seems to be winning its war on pollution

Map spells out just how early spring is this year

Honey buzzard don't care: Raptor raids beehives and deals with consequences

Bizarre cigar-shaped asteroid is from another star and unlike anything seen before

Sudan, the last male northern white rhino on Earth, dies at 45

Bicycle wheel brings out raccoon rivalry

Why NASA wants a drone buddy for its 2020 Mars rover mission

What are the different types of lightning?

What makes sand crabs such expert diggers?

What causes sinkholes?

Big dogs fend off big predators in U.S. trial