Supercritical fluids explained

When we boil a kettle, we observe what scientists call a phase transition: the water changes from being a liquid to a gas as water becomes less dense. One litre of water boils to give about 1,000 litres of steam at atmospheric ...

Pale blue dot – or not?

Appearances can be deceiving. This thick, cloud-rich atmosphere rains sulphuric acid and below lie not oceans but a baked and barren lava-strewn surface. Welcome to Venus.

Multibeam sonar can map undersea gas seeps

A technology commonly used to map the bottom of the deep ocean can also detect gas seeps in the water column with remarkably high fidelity, according to scientists from the University of New Hampshire and the National Oceanic ...

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