Researchers at the University of Bonn have created a gas of light particles that can be extremely compressed. Their results confirm the predictions of central theories of quantum physics. The findings could also point the way to new types of sensors that can measure minute forces. The study is published in the journal Science.

If you plug the outlet of an air pump with your finger, you can still push its piston down. The reason: Gases are fairly easy to compress — unlike liquids, for example. If the pump contained water instead of air, it would be essentially impossible to move the piston, even with the greatest effort.

Gases usually consist of at...

Researchers have built the world’s first physics-based computer simulation of oxygen transport on Europa, finding that it’s possible for oxygen to drain through the moon’s icy shell and into its ocean of liquid water — where it could potentially help sustain alien life — by hitching a ride on salt water under the moon’s ‘chaos terrains.’ The results show that not only is the transport possible, but that the amount of oxygen brought into Europa’s ocean could be on a par with the quantity of oxygen in Earth’s oceans today.

This theory has been proposed by others, but the researchers put it to the test by building the world’s first physics-based computer s...

New research has discovered how the enteric nervous system — or ‘second brain’ — can communicate with both the brain and spinal cord, which up until now had remained a major mystery. The study found specialized cells within the gut wall release serotonin when stimulated by food, which then acts on the nerves to communicate with the brain. The authors say as there is a direct connection between serotonin levels in our body and depression and how we feel, understanding how the gut communicates with the brain is of major importance.

How the ‘second brain’ — the enteric nervous system in our gut — communicates with our first brain has been one of the most challenging questions faced by enteric neuroscientists, until now.

New research from Flinders University has discovered how speci...

A nitrogen-doped, carbon-coated nickel anode can catalyze an essential reaction in hydrogen fuel cells at a fraction of the cost of the precious metals currently used, Cornell University researchers have found.

The new discovery could accelerate the widespread use of hydrogen fuel cells, which hold great promise as efficient, clean energy sources for vehicles and other applications.

It’s one of a string of discoveries for the Héctor D. Abruña lab in their ongoing search for active, inexpensive, durable catalysts for use in alkaline fuel cells.

“This finding makes progress toward using eff...