Trees are solid and dense. However, they're made from air. Wait, what?

Sulphur dioxide pollution from coal-fired power stations can have bad health effects — but who picks up the bill, and could power stations be doing more?

Imagine waking up one day and speaking with a different accent — with no control over it! Thanks to a very rare syndrome, this can actually happen.

Hummingbirds have a suite of incredible and unique features. However, one of their most important traits can lead to an early death.

For thousands of years, Australian Aboriginal people have accurately passed down information from one generation to the next using oral traditions.

Are you doing everything you can to stop thieves from stealing your identity and 'porting' your phone number?

There's currently a battle against the bulge — but is fighting fat really the healthiest path?

You may have heard of the Doomsday Vault — but scientists have gone even further to save the world's most important seed stocks.

Birds have been known to use all sorts of tools — but surely they wouldn't be using fire?

About 95% of the mass in the universe seems to be missing — what's going on!?