#vicisastro — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #vicisastro, aggregated by home.social.
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BepiColombo mission is about to arrive at Mercury!
It's a pretty nifty design: ESA's Mercury Planetary Orbiter (MPO) and JAXA's Mercury Magnetospheric Orbiter (Mio) are travelling to #Mercury as a compostive spacecraft, stacked on top of a transfer module. So separation & arrival will happen in stages.
▶️ https://www.esa.int/ESA_Multimedia/Images/2018/10/BepiColombo_arrival_at_Mercury_timeline?p
Planetary science is a good reminder that science needs long-term planning and foresight. #BepiColombo was launched in 2018!
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BepiColombo mission is about to arrive at Mercury!
It's a pretty nifty design: ESA's Mercury Planetary Orbiter (MPO) and JAXA's Mercury Magnetospheric Orbiter (Mio) are travelling to #Mercury as a compostive spacecraft, stacked on top of a transfer module. So separation & arrival will happen in stages.
▶️ https://www.esa.int/ESA_Multimedia/Images/2018/10/BepiColombo_arrival_at_Mercury_timeline?p
Planetary science is a good reminder that science needs long-term planning and foresight. #BepiColombo was launched in 2018!
-
BepiColombo mission is about to arrive at Mercury!
It's a pretty nifty design: ESA's Mercury Planetary Orbiter (MPO) and JAXA's Mercury Magnetospheric Orbiter (Mio) are travelling to #Mercury as a compostive spacecraft, stacked on top of a transfer module. So separation & arrival will happen in stages.
▶️ https://www.esa.int/ESA_Multimedia/Images/2018/10/BepiColombo_arrival_at_Mercury_timeline?p
Planetary science is a good reminder that science needs long-term planning and foresight. #BepiColombo was launched in 2018!
-
BepiColombo mission is about to arrive at Mercury!
It's a pretty nifty design: ESA's Mercury Planetary Orbiter (MPO) and JAXA's Mercury Magnetospheric Orbiter (Mio) are travelling to #Mercury as a compostive spacecraft, stacked on top of a transfer module. So separation & arrival will happen in stages.
▶️ https://www.esa.int/ESA_Multimedia/Images/2018/10/BepiColombo_arrival_at_Mercury_timeline?p
Planetary science is a good reminder that science needs long-term planning and foresight. #BepiColombo was launched in 2018!
-
BepiColombo mission is about to arrive at Mercury!
It's a pretty nifty design: ESA's Mercury Planetary Orbiter (MPO) and JAXA's Mercury Magnetospheric Orbiter (Mio) are travelling to #Mercury as a compostive spacecraft, stacked on top of a transfer module. So separation & arrival will happen in stages.
▶️ https://www.esa.int/ESA_Multimedia/Images/2018/10/BepiColombo_arrival_at_Mercury_timeline?p
Planetary science is a good reminder that science needs long-term planning and foresight. #BepiColombo was launched in 2018!
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It's only since Cecilia Payne's PhD thesis in 1925, that we know what the stars - and our Sun - are made of: mostly hydrogen.
Her thesis was described as ""the most brilliant PhD thesis ever written in astronomy" and it extremely readable: https://ui.adsabs.harvard.edu/abs/1925PhDT.........1P/abstract
Yet It took until 1956, 10 years before her retirement, for her to become full professor - because women were barred from becoming full professors at Harvard.
(Posted because she was born #OTD).
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It's only since Cecilia Payne's PhD thesis in 1925, that we know what the stars - and our Sun - are made of: mostly hydrogen.
Her thesis was described as ""the most brilliant PhD thesis ever written in astronomy" and it extremely readable: https://ui.adsabs.harvard.edu/abs/1925PhDT.........1P/abstract
Yet It took until 1956, 10 years before her retirement, for her to become full professor - because women were barred from becoming full professors at Harvard.
(Posted because she was born #OTD).
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Why space-based telescopes like #XMMNewton or #JWST? Because our atmosphere is incredibly good at filtering out radiation that is not in the visible or radio range.
That's obviously pretty good for humanity overall, but kinda inconvenient if we want to observe highly energetic X-ray photons from close to black holes or peer deep into stellar nurseries using infra-red light.
Image credit: OpenStax, Rice University, modified from STScI/JHU/NASA
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Why space-based telescopes like #XMMNewton or #JWST? Because our atmosphere is incredibly good at filtering out radiation that is not in the visible or radio range.
That's obviously pretty good for humanity overall, but kinda inconvenient if we want to observe highly energetic X-ray photons from close to black holes or peer deep into stellar nurseries using infra-red light.
Image credit: OpenStax, Rice University, modified from STScI/JHU/NASA