[ad_1] Nasa astronaut Chris Williams, left, Roscosmos cosmonaut Sergey Kud-Sverchkov, center, and Roscosmos cosmonaut Sergei Mikaev are seen inside the Soyuz MS-28 spacecraft after they landed in Kazakhstan (AP) A joint US-Russian crew safely returned to Earth on Sunday after spending more than eight months aboard the International Space Station (ISS), marking another milestone in…

[ad_1] Scientists have transformed a simple fragment of a cicada’s wing into an optical platform capable of detecting molecular signals By coating a cicada wing with an extremely thin layer of silver, researchers in Taiwan have created a highly sensitive optical sensor that can boost very weak molecular signals by tens of millions of times.The…

[ad_1] When James Watson and Francis Crick described the double-helix structure of DNA in 1953, the moment appeared decisive and complete. Yet that breakthrough rested on work carried out decades earlier by a scientist who rarely receives the same recognition. Friedrich Miescher had already identified a substance inside human cells that did not match any…

[ad_1] In 1980, when the event occurred, it was labelled Britain’s Roswell. At that point, there were many US Air Force members at the site who had all independently observed a metallic object that emitted light. Based on the release of government documents by the Ministry of Defence under the Freedom of Information Act, there…