How old is Earth's magnetic field?
Without its iron core’s Earth’s magnetic field wouldn’t exist.
Convection currents in the liquid iron outer core (yellow) transport heat to the mantle (orange) and produce the plan...
Earth
-
-
Lightning strikes in super slow motion
What appears to be a flash is actually a two-pronged approach.
Lightning travels at around 350,000,000 kilometres per hour – almost a third of the speed of light – making it appear...
-
Did climate fluctuation save Europe?
An explanation why the Mongols abandoned their invasion.
The Mongolian army, depicted here in a scene from the movie Genghis Khan, was a formidable fighting force. But did th...
-
Tsunami warning system turns back time
Algorithm may make forecasting tsunamis more accurate.
Tsunami evacuation route sign on the road to Tofino, British Columbia. Alasdair TurnerSeismologists have created a ...
-
Why is Antarctica's sea ice spreading?
The health of sea ice between the poles couldn’t be more different.
Older, rougher and thicker Antarctic sea ice in the Bellingshausen Sea in October 2007, within the sea ice shield sur...
-
Asteroid remains found in outback Australia
The asteroid left a crater hundreds of kilometres wide.
Chert in Marble Bar, Australia. The remains of the asteroid was found between two volcanic layers of this rock. DIRK ...
-
MRIs could help save traumatised trees
Drier conditions are causing plants potentially fatal problems, and researchers are using scannin...
A microCT scan of an intact plant stem shows the internal anatomy of the xylem. One advantage of tomography is that t...
-
Black Sea blooms and dinos in auction room
Missed the Mercury transit? Want to check the health of glaciers?
Copernicus Sentinel data (2016) / ESA Ice watch This image released this week by the European Space Agency was taken ...
-
Explore the eerie world of deep-sea vents
Chimneys at the bottom of the ocean that spew black ‘smoke’ .
The crushing pressures and searing heat of volcanic vents deep under the ocean are no longer unreachable – well, almo...
-
Meteorites show ancient Earth's atmosphere
Earth’s atmosphere 2.7 billion years ago contained oxygen.
One of 60 micrometeorites extracted from 2.7-billion-year-old limestone from the Pilbara region in Western Australia....
-
Turbulent mantle nudges Earth's crust
The planet is more dynamic that we thought.
Computer artwork of a section through the Earth, showing the movement of molten rock in the mantle. New research show...
-
Five images showcase the beauty of science
Canada’s forest fires, fertilisation fundamentals and vultures.
Gail Johnson / Getty ImagesEarth’s new lightning capital Lake Maracaibo in Venezuela has earned the top spot as Ear...