Graphene drum: A new phonon laser design

Professor Konstantin Arutyunov of the HSE Tikhonov Moscow Institute of Electronics and Mathematics (MIEM HSE), together with Chinese researchers, has developed a graphene-based mechanical resonator, in which coherent emission of sound energy quanta, or phonons, has been induced. Such devices, called phonon lasers, have wide potential for application in information...

NASA reports trouble with Hubble Space Telescope

The Hubble Space Telescope, which has been peering into the universe for more than 30 years, has been down for the past few days, NASA said Friday. The problem is a payload computer that stopped working last Sunday, the US space agency said. It insisted the telescope itself and scientific...

Stop-motion photons: Localized light particles on the road

Professor Alexander Szameit and his group of physicists from the University of Rostock, in collaboration with Professor Stefano Longhi from the Polytechnic University of Milan, discovered a novel and paradoxical behavior of light waves: Despite being tightly confined in a microscopic volume, a new kind of disorder allows optical signals...

An at-risk species of fish has established itself in lochs across Scotland

An at-risk species of fish has established itself in lochs across Scotland with the help of conservation managers and by rapidly adapting to its new environment, resulting in changes to their DNA, their ecology, and body shape, according to a new study. In an urgent bid to conserve the freshwater...

NASA’s NICER probes the squeezability of neutron stars

Matter in the hearts of neutron stars—dense remnants of exploded massive stars—takes the most extreme form we can measure. Now, thanks to data from NASA's Neutron star Interior Composition Explorer (NICER), an X-ray telescope on the International Space Station, scientists have discovered that this mysterious matter is less squeezable than...

Lanthanide nanoparticles enable continuous-wave NIR STED microscopy

National University of Singapore researchers have developed a new generation of near infra-red (NIR)-emitting nanoprobes for super-resolution imaging in deep tissues. These nanoprobes are based on lanthanide-doped nanomaterials with rich energy levels, high photostability and programmable optical kinetics. Stimulated-emission depletion (STED) microscopy, invented by Stefan HELL in 2000 (awarded the...

Top economists call for budget measures to speed the switch to electric cars

Australia's top economists overwhelmingly back government measures to speed the transition to electric cars in order to meet emission reduction targets. An exclusive poll of 62 of Australia's preeminent economists—selected by their peers—finds 51 back measures to boost the take-up of electric cars including subsidizing public charging stations, subsidizing the...

Chinese superconducting dipole magnet reaches 12 Tesla

The high-field superconducting magnet team of Institute of High Energy Physics (IHEP) of the Chinese Academy of Sciences has made progress in a new round of performance tests that ended on June 13. The magnetic field of the dipole magnet developed by the team exceeded 12 Tesla (Tesla) in two...

Sally Ride, first US woman in space, dies at 61 (Update)

(AP) — Sally Ride, who blazed trails into orbit as the first American woman in space, died Monday of pancreatic cancer. She was 61. Ride died at her home in the San Diego suburb of La Jolla, said Terry McEntee, a spokeswoman for her company, Sally Ride Science. She was...