Physical Letters News Today

Extracting information about dynamic processes in the picosecond (ps) requires extensive modification and optimal control of the operation conditions. This research, published in Ultramicroscopy surpasses these shortcomings by combining a delay line detector with continuous illumination in a transmission electron microscope.

Scientists Are Inching Closer to Figuring Out How Heavy Dark Matter Really Is TOM METCALFE, LIVESCIENCE 5 FEBRUARY 2021 Scientists are finally figuring out how much dark matter – the almost imperceptible material said to tug on everything, yet emit no light – really weighs. The new estimate helps pin down how heavy its particles could be – with implications for what the mysterious stuff actually is.   The research sharply narrows the potential mass of dark matter particles, from betw...

Scientists narrow down the weight of dark matter trillions of trillions of times Tom Metcalfe © Provided by Live Science The spiral galaxy NGC 5585, which is nestled on the tail of the Great Bear in the constellation of Ursa Major, is one of many that have revealed the presence of an invisible substance called dark matter. Scientists are finally figuring out how much dark matter — the almost imperceptible material said to tug on everything, yet emit no light — really weig...