Earth Matters

Extraterrestrial opal discovered in Antarctic meteorite

How light pollution is tricking the trees

How to survive a bear attack

These prize-winning images of dogs will steal your heart

There's a huge helium deposit under Tanzania, and here's why you should care

Adelie penguins likely to experience significant decline by end of century

Who needs fireworks when you have the stars?

Modern humans may have smoked 'hobbits' out of their caves and into extinction

Hungry, hungry caterpillars decimate trees in New England

Our galaxy is teeming with 'stealth' black holes

Poignant short film will change how you think of bumble bees

Witnessing a great white shark breach ... terrifying, awesome or both?