Geology

Former coal tips being checked amid landslip fears

Nasa mission senses hundreds of 'Marsquakes'

Why Wales is prone to landslides

Can we finally answer the big question about Mars?

Earth's oldest asteroid crater found in Australia

Asteroid was 'true culprit for dino extinction' Audio, 00:02:56Asteroid was 'true culprit for dino extinction'

Dinosaur extinction: 'Asteroid strike was culprit'

Taal volcano inner lake all but gone in eruption

Centenary of 'vital' polar research institute

Rocks may show signs of 'unknown ice age'

UK meteorite hunt thwarted by equipment damage

How the scramble for sand is destroying the Mekong

Ancient humans survived longer than we thought

Scientists revise Anak Krakatau tsunami simulation. Video, 00:00:30Scientists revise Anak Krakatau tsunami simulation

Giant blocks from Anak Krakatau litter ocean floor

Scientists run new Anak Krakatau simulations. Audio, 00:04:20Scientists run new Anak Krakatau simulations

Scientists update Anak Krakatau collapse simulation. Video, 00:00:30Scientists update Anak Krakatau collapse simulation

Anak Krakatau: Giant blocks generated huge tsunami. Audio, 00:08:35Anak Krakatau: Giant blocks generated huge tsunami

Deepest point on land found in Antarctica

1.9 billion people rely on natural 'water towers'

Metal meteorite quest set to get under way

Antarctic meteorite theory to be put to the test. Audio, 00:09:54Antarctic meteorite theory to be put to the test

Geologist blasts society's links with oil firms