Astronomers from National Astronomical Observatories of Chinese Academy of Sciences (NAOC), Shanghai Astronomical Observatory of CAS and Nanjing University have revealed the wobbly and flared nature of the Milky Way disk based on LAMOST-Gaia data, which updates our understanding about the galaxy.

The results were published in the Astronomical Journal.

The Milky Way is a typical disk galaxy. In the classical view of the Milky Way, the disk is symmetric and flat on the whole, like a pancake. Stars in the disk rotate around the galactic center, with mean radial and vertical velocities to be zero.

With the help of huge observational data provided by large survey projects in recent years, more and more details hidden in the Milky Way disk have become appar...

Engineers have achieved a practical mechanism for ‘full-duplex nonreciprocity,’ a property in metamaterials that allows for manipulation of both incoming and reflective beams of light.

Your office wall might play a part in the next generation of wireless communications. University of Toronto Engineering researchers Professor George Eleftheriades and postdoctoral fellow Sajjad Taravati have shown how reflectors made of metamaterials can channel light to enable more wireless data to be transmitted over a single frequency.

They project that this newly realized proper...

Benefits of nitrogen-fixing bacteria could aid efforts towards farming soils on Mars. Clover plants grown in Mars-like soils experience significantly more growth when inoculated with symbiotic nitrogen-fixing bacteria than when left uninoculated. Franklin Harris of Colorado State University, U.S., and colleagues present these findings in the open-access journal PLOS ONE on September 29, 2021.

As Earth’s population grows, researchers are studying the possibility of farming Martian soils, or “regoli...

Two thirds of patients found relief; benefits lasted one year. Rethinking what causes pain and how great of a threat it is can provide chronic pain patients with lasting relief and alter brain networks associated with pain processing, according to new University of Colorado Boulder-led research.

The study, published Sept. 29 in JAMA Psychiatry, found that two-thirds of chronic back pain patients who underwent a four-week psychological treatment called Pain Reprocessing Therapy (PRT) were pain-free or nearly pain-free post-treatment. And most maintained relief for one year.

The findings provide some of the strongest evidence yet that a psychological treatment can provide potent and durable relief for chronic pain, which afflicts one in five Americans.

“For a long time we have ...