Scientists solved a long-standing mystery by showing that pressure, not tiny spaces alone, determines how water behaves at the nanoscale.
Plasma pinches: From pursuits of nuclear fusion to an attractive point source of accelerated protons for proton radiography.
Protons accelerated in a radial direction were discovered and used for the first time from pinch plasmas—current-carrying plasma columns compressed by their own magnetic field—according to a study led by the Czech Technical University in Prague and University of Michigan Engineering.
The researchers accelerated protons to 3 mega electron volts (MeV) on relatively small-scale devices operating at a 400-kiloampere (kA) peak current. This expands access to proton radiography, a technique for imaging the ultra-fast evolution of electric and magnetic fields in plasma, once limited to sophisticated, expensive and often massive laser facilities like the OMEGA and OMEGA-EP laser systems at the University of Rochester’s Laboratory for Laser Energetics.
A China-linked threat cluster has been exploiting vulnerable Roundcube servers at U.S. and Canadian universities to steal credentials and deploy backdoor malware.
The campaign has been observed since May and focuses on physics and engineering departments, administrators and professors, as well as organizations involved in astrophysics, particle physics, or national security-related research.
Researchers at cybersecurity company Proofpoint are tracking the activity under the name ‘UNK_MassTraction’ and believe to be associated with a new threat cluster.