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For us to say we can’t go to Mars today is to basically say that we’ve become less than the people who got us to where we are today, and that’s something that we can’t afford. The risks associated with a human mission to Mars, given what we know today about Mars and about space technology, are much lower than the risks of the Apollo moon program were.
https://twitter.com/spacemen1969/status/1644946996292378627
Astronomer, astrophotographer and writer Annie Russell Maunder, born #OnThisDay in 1868, battled misogyny to become a leading solar astronomer and one of the first female Fellows of the @RoyalAstroSoc. Her work transformed our understanding of the Sun: https://www.rmg.co.uk/stories/topics/annie-maunder-solar-astronomer-astrophotographer
https://twitter.com/royalsociety/status/1646851590031130630
Je rends hommage à Yves Sillard, Délégué Général pour l'Armement 1989-93, décédé ce jour.Grand directeur de services et d'institutions étatiques, il est notamment responsable de la construction du Centre spatial Guyanais, et des programmes aérospatiaux ➡️ #Ariane et #Concorde
https://twitter.com/DG_Armement/status/1646559600617848842
Albert Einstein (14.03.1879-18.04.1955)
https://twitter.com/ValaAfshar/status/1648270922938294272
https://twitter.com/ESA_History/status/1652242317133373440
Robert McNees @mcneesAstronomer Cecilia Payne-Gaposchkin was born #OTD in 1900. She decoded spectral lines of stars to deduce their elemental composition, concluding they are mostly H and He, and was the first woman to be made full professor and department chair at Harvard. Image: Harvard Observatory
11 May 1881. Birth of Theodore von Kármán, Hungarian-American mathematician, aerospace engineer and physicist, noted for work on supersonic and hypersonic airflow characterisation. Regarded as the outstanding aerodynamic theoretician of the 20th century.
Kármán Tódor (plus connu sous le nom de Thodore Van Karman est hongrois né le 11 mai 1881 et décédé il y a 60 ans le 6 mai 1963.Pour en savoir beaucoup plus sur la lige de Kármán avec un des meilleurs article sur le sujet !https://iss-news.saf-astronomie.fr/2022/05/18/mais-ou-commence-lespace-1-2/https://iss-news.saf-astronomie.fr/2022/05/20/mais-ou-commence-lespace-2-2/
6 May 1963. Death of Theodore von Kármán (b. 11 May 1881). Hungarian-American mathematician, aerospace engineer and physicist, responsible for many key advances in aerodynamics, notably his work on supersonic and hypersonic airflow characterization.
Kandydaci na astronautów ESA klasy 2009/2022 w Europejskim Centrum Astronautów w Kolonii w Niemczech.
https://twitter.com/ImAstroNana/status/1656362006658576386
Retired NASA research pilot Bruce Peterson dies OTD in 2006 aged 72. (1960-81) NASA FRC/Dryden. Flew the Parasev, the M2F1, M2-F2 (inc surviving a serious crash in May 67) & HL-10 lifting bodies. During his career he logged 6,000 hrs flying time in almost 70 types of aircraft.
1 May 2006. Death of Bruce A. Peterson, American engineer and NASA test pilot who flew a variety of aircraft including the F5D-1, F-100, F-104, F-111A, B-52, NT-33A Variable Stability Trainer, the wingless lifting bodies and numerous general aviation aircraft.
Dziś przypada domniemana 550. rocznica urodzin astronoma.
https://twitter.com/spacemen1969/status/1661253191999143936
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