�鶹��ý

Skip to content

pondweed with oxygen bubbles

Environment

Why is Earth so rich in oxygen? The answer is simpler than we thought

It took billions of years for Earth’s air to grow rich in oxygen, but it may have been destined to do so once photosynthetic bacteria began pumping out the gas

News

Northern lights

Space

See the northern lights or aurora borealis: Follow this easy guide

Regulars

meteor shower

Space

The Leonid meteor shower peaks this week: Here's how to see it

Regulars

Amazon

Environment

Earth's most important rivers are in the sky – and they're drying up

Features

Inside the powerful fire clouds that pack a volcanic punch

Earth

Inside the powerful fire clouds that pack a volcanic punch

Regulars

Northern lights

Earth

The Northern Lights make a mysterious noise and now we might know why

Features

logs

Environment

Deforestation in the Amazon could raise local temperatures by 1.5C

News

Pluto

Space

It will be 'snowing' nitrogen on Pluto for the next century

News

message board

Health

The death of 9-year-old girl may be a tipping point for air pollution

Insight

Mystery ozone-destroying gases linked to badly recycled fridges

Earth

Mystery ozone-destroying gases linked to badly recycled fridges

Last week we learned a chemical that harms the ozone layer is being emitted in Asia – and now it seems sloppy recycling might be partly to blame

News

Earth

Someone is wrecking the ozone layer again. They must be stopped

Comment

Earth

We messed up our figures on how much carbon dioxide is too much

News

Earth

China is building a huge weather-control machine – will it work?

Insight

Life

Oxygen may have helped complex life arise a billion years early

News