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Artemis III

  The primary goal of Artemis III is for crews and flight controllers to practice the rendezvous, docking, habitation and operational procedures needed for future Artemis crewed landings near the Moon’s south pole, beginning in 2028. “Everything we do on Artemis III is designed to reduce risk on our future lunar lander missions,” Artemis III program manager Jeremy Parsons said.

US injected microsecond timing error to GPS in 2016

US GPS  statement Neil Degrasse FB In January 2016, during the decommissioning of GPS satellite SVN 23, a software error in the ground control system caused 13 other satellites to transmit timing data that was incorrect by 13.7 microseconds. While this may seem like a tiny mistake, such an error had major consequences. Systems that rely on precise GPS timing including telecom networks, digital broadcasting, financial exchanges, and power grids were affected. Thousands of timing faults and alarms were triggered globally, disrupting normal operations in many countries for several hours. Though the error did not affect GPS location services for most users, it exposed just how dependent modern infrastructure is on accurate time signals from space. The incident served as a wake-up call for organizations and governments, emphasizing the need for backup systems, better monitoring, and rigorous testing when updating critical technology. It remains one of the most significant GPS timing gli...

moonset at Jordan HK, aka JordanHenge

  someone post on FB the jordan road sunset and moonset in the same video "same street, completely different vibes, which do you prefer" facebook the two events are days apart, actually. using mooncalc, moon set is on 26 Sep whereas sunset is around end of sep blogpost . timeanddate  for whole month moonrise moonset info next time same moonset will be 22 mar 2027 05:34

曾國

 葉家山墓 该墓地是西周早期的一处曾侯家族墓地,出土青铜器铭文证实至少包括曾侯谏、伯生(或白生)、曾侯犺三代曾侯,并表明曾国为西周初期南宫适后裔的姬姓封国 baidu 經濟觀察網 wiki

策星雲

天文潮語 位於古中國天文二十八星宿的奎宿 baidu , 其中一星名“策” wiki  王良五星策一星 wiki 但當時星圖並沒有標有任何類似星雲的物體。 現時星圖策星為仙后座(cassiopeia) gamma 恆星。 用現今望遠鏡可見到附近有星雲IC63,IC59 , 即 ghost of cassiopeia. astrobin