New research sheds light on a Phenomenon known as ‘False Vacuum Decay’

Image of the Universe
Vacuum decay is thought to play a central role in the creation of space, time and matter in the Big Bang, but until now there has been no experimental test
 
Professor Ian Moss

An experiment conducted in Italy, with theory support from Newcastle University, has produced the first experimental evidence of vacuum decay.

In quantum field theory, when a not-so-stable state transforms into the true stable state, it’s called “false vacuum decay.” This happens through the creation of small localised bubbles.

While existing theoretical work can predict how often this bubble formation occurs, there hasn’t been much experimental evidence.

Now, an international research team involving Newcastle University scientists has for the first observed these bubbles forming in carefully controlled a...

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Salad in Space? New Research says it’s Not a Healthy Choice

Salad in space? New study says it's not a healthy choice
Researchers at the University of Delaware are looking at how plants grown in space are more prone to infections of Salmonella compared to plants not grown in space or grown under gravity simulations. Credit: Evan Krape / University of Delaware

Salad in space? New research says it’s not a healthy choice. It’s been more than three years since the National Aeronautics and Space Administration made space-grown lettuce an item on the menu for astronauts aboard the International Space Station. Alongside their space diet staples of flour tortillas and powdered coffee, astronauts can munch on a salad, grown from control chambers aboard the ISS that account for the ideal temperature, amount of water and light that plants need to mature.

But there is a problem...

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Scientists discover First Therapeutic Target for Preserving Heart Function in Patients with Pulmonary Hypertension

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Human heart. Credit: copyright American Heart Association

A research team has discovered a possible therapeutic target for pulmonary hypertension. The study, published in the journal Science Advances, identifies the first therapeutic target that can be modulated to preserve cardiac function in pulmonary hypertension, providing hope in the fight against this rare but fatal disease for which there is currently no cure.

Pulmonary hypertension is a condition of elevated blood pressure in the arteries that carry deoxygenated blood to the lungs. This increased pulmonary blood pressure puts the heart under continuous strain as it has to work harder to pump blood to the lungs.

Pulmonary hypertension affects between 15 and 50 people per million of the world’s population...

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Cobalt-free Batteries could Power Cars of the Future

A molecular lattice is on the right, and glowing pink spheres on the left. An arrow leads pink spheres to the lattice.
A new MIT battery material could offer a more sustainable way to power electric cars. Instead of cobalt or nickel, the new lithium-ion battery includes a cathode based on organic materials. In this image, lithium molecules are shown in glowing pink.
Credits:Image: Courtesy of the researchers. Edited by MIT News.

Many electric vehicles are powered by batteries that contain cobalt—a metal that carries high financial, environmental, and social costs.

MIT researchers have now designed a battery material that could offer a more sustainable way to power electric cars. The new lithium-ion battery includes a cathode based on organic materials, instead of cobalt or nickel (another metal often used in lithium-ion batteries).

In a new study, the researchers showed that this material, which...

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