Science News

Expanse of snow and ice on the Amunden Sea Embayment ice shelf

Billions of tonnes of ice lost from Antarctic Ice sheet

Published
20 March 2023
Categories
Global
Science
Environment

Scientists have calculated that the fastest changing Antarctic region - the Amundsen Sea Embayment - has lost more than 3,000 billion tonnes of ice over a 25-year period.   

Graphic shows the Earth as seen from space. Half of the graphic shows the surfaces of the world - the other half of the graphic  shows the hot processes that happen deep in the Earth's core.

Activity deep in Earth affects the global magnetic field

Published
16 March 2023
Categories
Environment
Science

Compass readings that do not show the direction of true north and interference with the operations of satellites are a few of the problems caused by peculiarities of the Earth’s magnetic field.

Earth seen from space as the sun begins to emerge over the northern hemisphere

Mineral dust and Earth's oxygen levels

Published
6 March 2023
Categories
Science
Environment

Mineral dust played a key role in raising oxygen levels in the Earth’s atmosphere billions of years ago, with major implications for the way intelligent life later evolved, say researchers.

The Antarctic peninsula seen from an aircraft. Ice emerges from valleys and enters the sea.

Satellites reveal speed-up of Antarctic glaciers

Published
27 February 2023
Categories
Science
Environment

Glaciers along the Antarctic peninsula are flowing faster in the summer because of a combination of melting snow and warmer ocean waters, say researchers.

A scientist with long brown hair drops a solution from a pipette, in a laboratory.

Genes reveal kidney cancer’s risk of recurrence

Published
23 February 2023
Categories
Science
Health

A decade-long international study into kidney cancer has shown that doctors can predict the likelihood of a patient’s disease returning by looking at DNA mutations in their tumours.

Depictions of present-day planktonic foraminifera floating in the deep sea. Image credit: Richard Bizley, BizleyArt

Fossil study reveals origins of biodiversity gradient

Published
15 February 2023
Categories
Global
Environment
Science
Research

Researchers have used nearly half a million fossils to solve a scientific mystery - why the number of different species is greatest near the equator and decreases towards polar regions.