What seems like a colorful flower here is actually the work of bacteria. The microbes become artists under certain conditions - and form fascinating...
In regions like Scandinavia and Alaska, colorful lighting effects in the sky are not uncommon. Nevertheless, this aurora is something very special: it is...
Sustainable forestry could enable a material revolution. (Image: Sabine Hortebusch / iStock)
Instead of using cement and steel, we should rely on a tried-and-tested natural...
Acceleration (orange) and deceleration (blue) of ocean circulation. (Image: Shijian Hu)
How does climate change affect global ocean currents? So far, scientists have assumed that...
Reconstruction of the giant tortoise Stupendemys geographicus. (Image: Jaime Chirinos)
Turtles are a successful model of evolution - they have existed for 220 million years...
Researchers have used fossil egg shells as a "thermometer". (Image: Erika Parfenova / iStock)
Were the dinosaurs cold-blooded like reptiles or warm-blooded like birds and...
View of the coast of the Greek island of Santorini (Image: spooh / iStock)
Many regions of the Mediterranean are already suffering from increasing drought....