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Rocket Report: Russia responds to Western sanctions, UK spaceport moves ahead
Enlarge / As the space world watched Russia threaten to withhold Soyuz launches, SpaceX causally sent its ninth rocket of 2022 into orbit on Thursday, another batch of Starlink satellites. (credit: Trevor Mahlmann / Ars Technica) Welcome to Edition 4.34 of the Rocket Report! There is a famous quote said by Vladimir Lenin, of all […]
Dozens of viruses seem to use a different DNA base
Enlarge / Normal DNA uses adenine (left), while some viruses use diaminopurine instead. DNA is the genetic material used by every living organism. But, in a few edge cases, the four bases of DNA—adenine, thymidine, cytosine, and guanine—undergo chemical modifications. And in viruses, things are far more flexible, with many using RNA instead of DNA […]
Firefox 87 is out today, adds Smart Block for improved private browsing
Enlarge / You aren’t trying to leak any data to third-party sites, are you? No? OK then. Carry on, friend. (credit: Josh Blouin / US Fish and Wildlife Service) Mozilla released Firefox 87.0 this morning, the latest version of its open source web browser. Following on the heels of December’s Firefox 85 and February’s Firefox […]