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Aftermath of the merger of two neutron stars. Ejecta from an initial explosion formed a shell around the black hole formed from the merger. A jet of material propelled from a disk surrounding the black hole first interacted with the ejecta material to form a broad “cocoon.” Later, the jet broke through to emerge into interstellar space, where its extremely fast motion became apparent.
Credit: Sophia Dagnello, NRAO/AUI/NSF

Jet appeared to move 4X faster than light. The supersharp radio ‘vision’ of a continent-wide collection of radio telescopes has answered an outstanding question about the aftermath of a merger of two neutron stars...

This is a fluorescent microscopy image showing accumulation of phosphatidylethanolamine (PE, red) in human dendritic cells treated with synthetic F. tularensis PE containing liposomes. Blue indicates the cell nucleus.
Credit: NIAID

NIH scientists see therapeutic potential against bacteria, viruses. National Institutes of Health researchers have identified a naturally occurring lipid – a waxy, fatty acid – used by a disease-causing bacterium to impair the host immune response and increase the chance of infection. Inadvertently, they also may have found a potent inflammation therapy against bacterial and viral diseases.

Lipids are known to help Francisella tularensis bacteria, the cause of tularemia, to suppress host inflammation when infecting mouse and human cells...

A newly developed stealth sheet can hide hot objects like human bodies or military vehicles from infrared cameras. Credit: PHOTO BY HONGRUI JIANG

Infrared cameras are the heat-sensing eyes that help drones find their targets even in the dead of night or through heavy fog. Hiding from such detectors could become much easier, thanks to a new cloaking material that renders objects – and people – practically invisible. “What we have shown is an ultrathin stealth ‘sheet.’ Right now, what people have is much heavier metal armor or thermal blankets,” says Hongrui Jiang, professor of electrical and computer engineering at the University of Wisconsin-Madison.

Warm objects like human bodies or tank engines emit heat as infrared light...