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HEXDC6 Cosmic rays.Artwork of high-energy particles radiation from star in deep space (cosmic rays) impacting molecules atoms in Earth's atmosphere.These primary impacts cause secondary cascade of subatomic particles.Detection analysis of these particles,which include protons,neutrons,light nuclei,neutrinos,pions,and muons,can reveal source of cosmic rays.These sources may include gamma ray bursts (GRBs),active galactic nuclei,supernovae quasars.Such research is carried out atmospheric balloons,or advanced detectors built underground or underwater,to shield them from other radiation.

US Navy is developing GPS that uses cosmic rays to navigate the Arctic

7 December 2021

At higher latitudes, traditional GPS navigation is not reliable, but muons produced when cosmic rays hit Earth’s atmosphere could be used to navigate in the Arctic, as well as underground or in the water
A woman checks her EU Digital Covid certificate on her mobilephone at El Prat airport in Barcelona on July 1, 2021. - The European health certificate, which Belgium began using on June 16, 2021, will become operational across the EU on July 1, 2021. (Photo by Pau BARRENA / AFP) (Photo by PAU BARRENA/AFP via Getty Images)

Fake covid-19 vaccine certificates are being sold on the dark web

3 December 2021

Researchers found 17 illicit marketplaces claiming to sell vaccine passports, and some appear to be valid entries in national databases
A Samsung Electronics Co. Galaxy Z Fold 3 smartphone inside the company's Digital Plaza store at the Hyundai Seoul department store in Seoul, South Korea, on Sunday, Oct. 3, 2021. Samsung Electronics will releases its preliminary third quarter earnings on Oct. 8. Photographer: SeongJoon Cho/Bloomberg via Getty Images

Smartphone app can detect hidden camera lenses from reflections

3 December 2021

Time-of-flight sensors built into some smartphones can be used to detect the telltale reflections from hidden camera lenses

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