Uranus Aurora discovery offers clues to Habitable Icy Worlds

Credit: NASA, ESA and M. Showalter (SETI Institute) for the background image of Uranus

Astronomers confirm the existence of an infrared (IR) aurora on Uranus. This could help astronomers identify exoplanets that might support life, a large number of which are icy worlds.

The discovery could shed light on the mysteries behind the magnetic fields of the planets of our solar system, and even on whether distant worlds might support life.

The team of scientists, supported by the Science and Technology Facilities Council (STFC), have obtained the first measurements of the infrared (IR) aurora at Uranus since investigations began in 1992. While the ultraviolet (UV) aurorae of Uranus has been observed since 1986, no confirmation of the IR aurora had been observed until now...

Read More

A Superatomic Semiconductor sets a Speed Record

Lattice structures with a jumpy hare and a smooth-moving tortoise overlain.
The quick-but-slow hare, representing an electron, versus the slow-and-steady moving tortoise, representing acoustic exciton-polarons. Credit: Jack Tulyag

The search is on for better semiconductors. Writing in Science, a team of chemists at Columbia University led by Jack Tulyag, a PhD student working with chemistry professor Milan Delor, describes the fastest and most efficient semiconductor yet: a superatomic material called Re6Se8Cl2.

Semiconductors — most notably, silicon — underpin the computers, cellphones, and other electronic devices that power our daily lives, including the device on which you are reading this article. As ubiquitous as semiconductors have become, they come with limitations...

Read More

Sun Small but mighty: The Hidden Power of Broccoli Sprouts

Broccoli sprouts have been discovered to contain 7X more polysulfides than mature broccoli. A research team from Osaka Metropolitan University has found that polysulfides are abundant in broccoli sprouts. They found that the amount of polysulfides increased dramatically during growth, by an approximately 20-fold in seeds by the fifth day of germination. Furthermore, a comprehensive analysis of the polysulfides detected a number of polysulfide candidates whose structures have not yet been determined. The identification of these unknown polysulfides and detailed analysis of their pharmacological activities are expected to enable the development of new preventive and therapeutic strategies and medicines for cancer, neurodegenerative diseases, stroke, inflammation, and other diseases.

Read More

How Quantum Light ‘Sees’ Quantum Sound

How quantum light sees quantum sound
Getty images.

Researchers at the University of East Anglia have proposed a new way of using quantum light to ‘see’ quantum sound.

A new paper published today reveals the quantum-mechanical interplay between vibrations and particles of light, known as photons, in molecules.

It is hoped that the discovery may help scientists better understand the interactions between light and matter on molecular scales.

And it potentially paves the way for addressing fundamental questions about the importance of quantum effects in applications ranging from new quantum technologies to biological systems.

Dr Magnus Borgh from UEA’s School of Physics said: “There is a long-standing controversy in chemical physics about the nature of processes where energy from particles of light is transferred ...

Read More