Science News for December 31, 2022

Mysterious gamma-ray emitting bubbles around the center of our Galaxy explained

Large gamma-ray emitting bubbles are produced by fast blowing outward winds and the associated reverse shock. Numerical simulations successfully reproduced the temperature profile observed by an X-ray telescope, supporting this scenario.

SourceTokyo Metropolitan University·JournalMonthly Notices of the Royal Astronomical Society·DateDec 31, 2022

Engineered by KAIST mechanics - a quick but clingy creepy-crawler that will MARVEL you

M.A.R.V.E.L.'s magnetic soles made of Electro-Permanent Magnet (EPM) and Magneto-Rheological Elastomer (MRE) enable fast movement on uneven surfaces. The robot can climb at speeds of up to 70 cm/s on walls and 50 cm/s on ceilings, making it the world's fastest walking climbing robot.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalScience Robotics·TypeMeta-analysis·DateDec 31, 2022