As part of the international CLOUD project at the nuclear research centre CERN, researchers at PSI have identified so-called sesquiterpenes – gaseous hydrocarbons that are released by plants – as ...

One unusual hypothesis we’ve covered several times in the past is the idea that cosmic rays—charged particles from beyond our solar system that constantly bombard the Earth—play a significant role in ...

Microplastics are turning up in unusual places increasingly often as they filter into nearly every facet of life on Earth. They’ve been discovered in drinking water, food, air and even in blood. Now, ...

Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. The Amazon is also known as the Green Ocean, for the way ...

Deep in the Amazon, high above the rainforest, clouds sprout from the thick atmosphere, their condensed water vapor billowing into the blue sky beyond. Underneath this, on the ground but acutely aware ...

A Feb. 11 Instagram post (direct link, archive link) includes a photo of a circular, red cloud formation above a map of Turkey and northern Syria. "#HAARP cloud; then weeks later; massive EARTHQUAKES ...

A spectacular and beautiful cloud formation was spotted in the skies above Australia by a passenger on an aeroplane. Ilya Katsman, 22, saw the phenomenon on a Virgin Australia flight from Perth to ...

Scientists have identified a novel driver of new aerosol particle formation in the Arctic during the summer to fall transition. The authors show that iodic acid is important for forming new particles ...