social.stefan-muenz.de

Search

Items tagged with: nasa

that is really awesome. but i can't help wondering how many goto were in this code ...

#science #nasa #apollo

https://twitter.com/archer_rs/status/1392020063327342593
 
#nasa #apod

Animation: Black Hole Destroys Star


27 April 2021 – Video Illustration Credit: DESY, Science Communication Lab


Explanation: What happens if a star gets too close to a black hole? The black hole can rip it apart – but how? It’s not the high gravitational attraction itself that’s the problem – it’s the difference in gravitational pull across the star that creates the destruction. In the featured animated video illustrating this disintegration, you first see a star approaching the black hole. Increasing in orbital speed, the star’s outer atmosphere is ripped away during closest approach. Much of the star’s atmosphere disperses into deep space, but some continues to orbit the black hole and forms an accretion disk. The animation then takes you into the accretion disk while looking toward the black hole. Including the strange visual effects of gravitational lensing, you can even see the far side of the disk. Finally, you look along one of the jets being expelled along the spin axis. Theoretical models indicate that these jets not only expel energetic gas, but create energetic neutrinos – one of which may have been seen recently on Earth.

Explication : Que se passe-t-il si une étoile s’approche trop près d’un trou noir ? Le trou noir peut la mettre en pièces, mais comment ? Ce n’est pas la forte attraction gravitationnelle elle-même qui pose problème, mais la différence de force gravitationnelle entre les deux étoiles qui provoque la destruction. Dans la vidéo illustrant cette désintégration, on voit d’abord une étoile s’approcher du trou noir. La vitesse orbitale de l’étoile augmente et son atmosphère extérieure est arrachée au moment où elle se rapproche le plus. Une grande partie de l’atmosphère de l’étoile est projetée dans l’espace, mais une autre continue à tourner autour du trou noir et constitue un disque d’accrétion. L’animation vous emmène ensuite dans le disque d’accrétion tout en regardant vers le trou noir. Grâce aux étranges effets visuels de la lentille gravitationnelle, vous pouvez même voir la face cachée du disque. Pour finir, vous voyez l’un des jets expulsés le long de l’axe de rotation. Les modèles théoriques indiquent que ces jets expulsent non seulement des gaz énergétiques, mais créent également des neutrinos énergétiques, dont l’un a peut-être été observé récemment sur Terre.

Traduit avec www.DeepL.com/Translator (version gratuite)
 
#nasa #apod

Animation: Black Hole Destroys Star


27 April 2021 – Video Illustration Credit: DESY, Science Communication Lab


Explanation: What happens if a star gets too close to a black hole? The black hole can rip it apart – but how? It’s not the high gravitational attraction itself that’s the problem – it’s the difference in gravitational pull across the star that creates the destruction. In the featured animated video illustrating this disintegration, you first see a star approaching the black hole. Increasing in orbital speed, the star’s outer atmosphere is ripped away during closest approach. Much of the star’s atmosphere disperses into deep space, but some continues to orbit the black hole and forms an accretion disk. The animation then takes you into the accretion disk while looking toward the black hole. Including the strange visual effects of gravitational lensing, you can even see the far side of the disk. Finally, you look along one of the jets being expelled along the spin axis. Theoretical models indicate that these jets not only expel energetic gas, but create energetic neutrinos – one of which may have been seen recently on Earth.

Explication : Que se passe-t-il si une étoile s’approche trop près d’un trou noir ? Le trou noir peut la mettre en pièces, mais comment ? Ce n’est pas la forte attraction gravitationnelle elle-même qui pose problème, mais la différence de force gravitationnelle entre les deux étoiles qui provoque la destruction. Dans la vidéo illustrant cette désintégration, on voit d’abord une étoile s’approcher du trou noir. La vitesse orbitale de l’étoile augmente et son atmosphère extérieure est arrachée au moment où elle se rapproche le plus. Une grande partie de l’atmosphère de l’étoile est projetée dans l’espace, mais une autre continue à tourner autour du trou noir et constitue un disque d’accrétion. L’animation vous emmène ensuite dans le disque d’accrétion tout en regardant vers le trou noir. Grâce aux étranges effets visuels de la lentille gravitationnelle, vous pouvez même voir la face cachée du disque. Pour finir, vous voyez l’un des jets expulsés le long de l’axe de rotation. Les modèles théoriques indiquent que ces jets expulsent non seulement des gaz énergétiques, mais créent également des neutrinos énergétiques, dont l’un a peut-être été observé récemment sur Terre.

Traduit avec www.DeepL.com/Translator (version gratuite)
 
#nasa #apod

Flying Over the Earth at Night II


23 April 2021 – Video Credit: NASA, Gateway to Astronaut Photography, ISS Expedition 53; Music: The Low Seas (The 126ers)


Explanation: Recorded during 2017, timelapse sequences from the International Space Station are compiled in this serene video of planet Earth at Night. Fans of low Earth orbit can start by enjoying the view as green and red aurora borealis slather up the sky. The night scene tracks from northwest to southeast across North America, toward the Gulf of Mexico and the Florida coast. A second sequence follows European city lights, crosses the Mediterranean Sea, and passes over a bright Nile river in northern Africa. Seen from the orbital outpost, erratic flashes of lightning appear in thunder storms below and stars rise above the planet’s curved horizon through a faint atmospheric airglow. Of course, from home you can always check out the vital signs of Planet Earth Now.

Explication : Enregistrées au cours de l’année 2017, les séquences en time-lapse de la Station spatiale internationale sont compilées dans cette vidéo sereine de la planète Terre la nuit. Les fans de l’orbite terrestre basse peuvent commencer par apprécier la vue des aurores boréales vertes et rouges qui recouvrent le ciel. La scène nocturne traverse l’Amérique du Nord du nord-ouest au sud-est, en direction du golfe du Mexique et de la côte de la Floride. Une deuxième séquence suit les lumières des villes européennes, traverse la mer Méditerranée et passe au-dessus du Nil en Afrique du Nord. Vu depuis l’avant-poste orbital, des éclairs erratiques apparaissent dans les orages en dessous et les étoiles s’élèvent au-dessus de l’horizon incurvé de la planète à travers une faible lueur atmosphérique. Bien sûr, de chez vous, vous pouvez toujours vérifier les signes vitaux de la planète Terre maintenant.

Traduit avec www.DeepL.com/Translator (version gratuite)
 
#nasa #apod

Flying Over the Earth at Night II


23 April 2021 – Video Credit: NASA, Gateway to Astronaut Photography, ISS Expedition 53; Music: The Low Seas (The 126ers)


Explanation: Recorded during 2017, timelapse sequences from the International Space Station are compiled in this serene video of planet Earth at Night. Fans of low Earth orbit can start by enjoying the view as green and red aurora borealis slather up the sky. The night scene tracks from northwest to southeast across North America, toward the Gulf of Mexico and the Florida coast. A second sequence follows European city lights, crosses the Mediterranean Sea, and passes over a bright Nile river in northern Africa. Seen from the orbital outpost, erratic flashes of lightning appear in thunder storms below and stars rise above the planet’s curved horizon through a faint atmospheric airglow. Of course, from home you can always check out the vital signs of Planet Earth Now.

Explication : Enregistrées au cours de l’année 2017, les séquences en time-lapse de la Station spatiale internationale sont compilées dans cette vidéo sereine de la planète Terre la nuit. Les fans de l’orbite terrestre basse peuvent commencer par apprécier la vue des aurores boréales vertes et rouges qui recouvrent le ciel. La scène nocturne traverse l’Amérique du Nord du nord-ouest au sud-est, en direction du golfe du Mexique et de la côte de la Floride. Une deuxième séquence suit les lumières des villes européennes, traverse la mer Méditerranée et passe au-dessus du Nil en Afrique du Nord. Vu depuis l’avant-poste orbital, des éclairs erratiques apparaissent dans les orages en dessous et les étoiles s’élèvent au-dessus de l’horizon incurvé de la planète à travers une faible lueur atmosphérique. Bien sûr, de chez vous, vous pouvez toujours vérifier les signes vitaux de la planète Terre maintenant.

Traduit avec www.DeepL.com/Translator (version gratuite)
 
man erfährt ja immer wieder was neues. diese sternengechichte finde ich sehr interessant.

#wissenschaft #science #nasa #astronomie #freistetter

Sternengeschichten Folge 439: Nancy Roman


Das ist die Transkription einer Folge meines Sternengeschichten-Podcasts. Die Folge gibt es auch als MP3-Download und YouTube-Video. Und den ganzen Podcast findet ihr auch bei Spotify. Mehr Informa…
 

marsflug


ich bin total begeistert davon: ein helikopterflug auf dem mars! das hier ist vom 2. start

#mars #science #space #nasa

 
Auch wenn ihr euch sonst nicht bei Heise.de rumtreibt, dieser Artikel ist es sehr sehr wert, gelesen zu werden:

https://www.heise.de/hintergrund/Vor-40-Jahren-Erstflug-des-Space-Shuttle-die-Traummaschine-geht-in-Dienst-6011014.html?seite=all

#SpaceShuttle #NASA #lesebefehl
 
Sounds of Perseverance Mars Rover Driving – Sol 16 (16 minutes)

wav and mp3 available direct from NASA on right side of page

https://mars.nasa.gov/resources/25731/sounds-of-perseverance-mars-rover-driving-sol-16-16-minutes/

#Perseverance #MarsRover #NASA #Space #Mars #ScienceIsReal
 
Either @WikiCommons, @NASAPersevere and @NASA - image of the day are some of my #bot accounts that post nice #photos from #NASA and #Wikimedia, follow them if you want to see some nice #pictures every day.
 
What #Space Accounts are there in the #Fediverse ?

I run a bot @NASA - image of the day, but what else is there?

Anything related to #ESA, #NASA, #Mars, #SpaceX, that shares interesting facts, nice photos and pictures.
 
#NASA ‘s #rover #Perseverance hat nun die ersten hochauflösenden Fotos von meinem Schatz und unserem Hund Chilli auf dem #Mars übermittelt. Den beiden scheint es nach erfolgreicher Landung gut zu gehen. Man erkennt interessante Steine jeder Größe und kann den Kraterrand am Horizont gut erkennen.
😊
Bild/Foto
 
The insane engineering of the Perseverance rover. Instead of having instruments for determining the chemical composition of the Martian soil, the system stores sample tubes where they will be transferred to a spot where a future rover will retrieve them in 2026, transferring them to a return rocket that will bring them to orbit, where they will be transferred to another spacecraft that will return the Martian soil back to Earth.

Instead of having a mass spectrometer, a gas chromatograph, and a tunable laser spectrometer, which the Curiosity rover had, Perseverance has Raman spectroscopy, luminescent spectroscopy using UV light, an x-ray laser, and ground penetrating radar that can see 10 meters under the surface.

In addition, Perseverance has a system to make oxygen from the atmosphere's CO2. Not something the rover needs, but something future humans will need, so this rover will test the technology. It also has a helicopter. It can only fly for about 90 seconds, so it's really also a technology test, but if it works, it will lead to future Mars helicopters with science missions.



#nasa #mars #perseverance
 
The insane engineering of the Perseverance rover. Instead of having instruments for determining the chemical composition of the Martian soil, the system stores sample tubes where they will be transferred to a spot where a future rover will retrieve them in 2026, transferring them to a return rocket that will bring them to orbit, where they will be transferred to another spacecraft that will return the Martian soil back to Earth.

Instead of having a mass spectrometer, a gas chromatograph, and a tunable laser spectrometer, which the Curiosity rover had, Perseverance has Raman spectroscopy, luminescent spectroscopy using UV light, an x-ray laser, and ground penetrating radar that can see 10 meters under the surface.

In addition, Perseverance has a system to make oxygen from the atmosphere's CO2. Not something the rover needs, but something future humans will need, so this rover will test the technology. It also has a helicopter. It can only fly for about 90 seconds, so it's really also a technology test, but if it works, it will lead to future Mars helicopters with science missions.



#nasa #mars #perseverance
 

Perseverance Rover’s Descent and Touchdown on Mars (Official NASA Video)


published Feb 22, 2021


#nasa #perseverance #rover
 



#Perseverance #Mars #NASA
 

#NASA sendet #Marslandung im #Live-Stream


Von Ulrich Bantle - 18. Februar 2021

Die amerikanische Weltraumbehörde NASA überträgt die für den heutigen Donnerstag gegen 22 Uhr geplante Landung des Rovers Perseverance auf dem Mars in Live-Streams. Die Übertragung beginne dann bereits um 20.15 Uhr bei NASA-TV.

Perseverance war im Juli 2020 gestartet und soll am heutigen Donnerstag um 21.38 Uhr mit dem Landemanöver beginnen, indem er sich vom Antriebsmodul abkoppelt. Um 21.48 Uhr treffe Perseverance auf die Mars-Atmosphäre. Der Rover sei dann mit rund 19.500 Stundenkilometer unterwegs, teilt die NASA mit. Durch die Reibung in der Atmosphhäre heizen sich die Schutzschilde des Rovers in kurzer Zeit auf rund 1300 Grad auf. Die Bremswirkung setzt ein. Der Bremsfallschirm öffne sich um 21.52 Uhr, Perseverance sei dann immer noch mit Überschallgeschwindigkeit unterwegs. 20 Sekunden nachdem der Bremsfallschirm sich geöffnet hat, stößt der Rover die Hitzeschilde ab. Er sei dann in der Lage, mittels Radar die Entfernung zum Mars zu messen und durch den Einsatz seiner Terrain-Relative Navigation einen geeigneten Landepunkt zu wählen. Um 21.55 Uhr soll der Rover im Jezero Krater auf dem Mars landen. Er soll dann nur noch in Schrittgeschwindigkeit unterwegs sein. Die Landung kann laut der NASA gänzlich ohne Kommunikation zwischen Rover und Erde erfolgen.

Eine der ersten Aufgaben nach einer erfolgreichen Landung des Rovers sei die Übertragung von Fotos seines Standorts an die Erde. In den folgenden Tagen sind weitere Experimente geplant. Perseverance soll unter anderem nach Spuren von Leben suchen. Bei der NASA-Webseite zur Landung sind die möglichen Streams und Youtube-Kanäle verlinkt.

Source: https://www.linux-magazin.de/news/nasa-sendet-marslandung-im-live-stream/

and: https://mars.nasa.gov/mars2020/timeline/landing/watch-online/
NASA sendet Marslandung im Live-Stream
 
#inspiration

#NASA

#KatherineJohnson

(https://mymodernmet.com/ss-katherine-johnson-spacecraft/)
NASA Mathematician Katherine Johnson Is Honored With a New Spacecraft Named After Her
 
#inspiration

#NASA

#KatherineJohnson

(https://mymodernmet.com/ss-katherine-johnson-spacecraft/)
NASA Mathematician Katherine Johnson Is Honored With a New Spacecraft Named After Her
 

Allo Houston, y'a un problème...





#humour #humor #chat #cat #nasa #lune #moon
 



Mount Fuji’s Missing Snow


https://earthobservatory.nasa.gov/images/147780/mount-fujis-missing-snow

Even as record snowfall has clobbered Japan’s western coast, much of the country’s eastern half has avoided major snow accumulation this winter. Notably, Mount Fuji’s iconic snow cap—which is normally visible throughout December—has been small or absent this year.

The mountain peak, the tallest in Japan, did get a dusting on September 28, 2020, its first snowfall of the year. But that melted off quickly, and Fuji’s snow cap remained elusive in the coming months. Normalized Difference Snow Index (NDSI) observations from NASA’s Terra satellite indicate that snow cover on the mountain last month was among the lowest in the satellite's 20-year record for any December.

Ground-based weather stations made similar observations. “Stations around Mount Fuji recorded much less precipitation than usual in December,” said Toshio Iguchi, a remote sensing scientist based at NASA’s Goddard Space Flight Center. “Through December 24, it was only 10 percent of an average year.” Weather data also indicate that temperatures around the mountain were warm during much of December.

In the images at the top of the page, the bare upper slopes of the mountain were visible to the Operational Land Imager (OLI) on the Landsat 8 satellite on January 1, 2021. For comparison, the other image, also acquired by OLI, shows Mount Fuji on December 29, 2013, on a day it was snowier. The mountain had a slightly above average amount of snow in December 2013, according to the Terra NDSI observations.

Toward the end of December 2020, the mountain finally received some snow. But even chillier January weather did not guarantee that the snow cap would last. After a few days, the snow cap was much reduced as temperatures creeped above freezing. And part of the snow cap was likely blown away by wind, according to Weather News.

While local weather conditions are key to whether Fuji’s snow cap is present on any given day, long-term climate data indicates that conditions on the peak are changing. One recent study found the mountain’s timberline had moved upslope by 30 meters (100 feet) over the past four decades, likely due to a 2 degree Celsius (3.6 degrees Fahrenheit) increase in summer temperatures near the peak.

NASA Earth Observatory images by Joshua Stevens, using Landsat data from the U.S. Geological Survey and MODIS data from the National Snow and Ice Data Center. Story by Adam Voiland.
#EarthObservatory #NASA #MountFuji #Japan #Snow
 



Mount Fuji’s Missing Snow


https://earthobservatory.nasa.gov/images/147780/mount-fujis-missing-snow

Even as record snowfall has clobbered Japan’s western coast, much of the country’s eastern half has avoided major snow accumulation this winter. Notably, Mount Fuji’s iconic snow cap—which is normally visible throughout December—has been small or absent this year.

The mountain peak, the tallest in Japan, did get a dusting on September 28, 2020, its first snowfall of the year. But that melted off quickly, and Fuji’s snow cap remained elusive in the coming months. Normalized Difference Snow Index (NDSI) observations from NASA’s Terra satellite indicate that snow cover on the mountain last month was among the lowest in the satellite's 20-year record for any December.

Ground-based weather stations made similar observations. “Stations around Mount Fuji recorded much less precipitation than usual in December,” said Toshio Iguchi, a remote sensing scientist based at NASA’s Goddard Space Flight Center. “Through December 24, it was only 10 percent of an average year.” Weather data also indicate that temperatures around the mountain were warm during much of December.

In the images at the top of the page, the bare upper slopes of the mountain were visible to the Operational Land Imager (OLI) on the Landsat 8 satellite on January 1, 2021. For comparison, the other image, also acquired by OLI, shows Mount Fuji on December 29, 2013, on a day it was snowier. The mountain had a slightly above average amount of snow in December 2013, according to the Terra NDSI observations.

Toward the end of December 2020, the mountain finally received some snow. But even chillier January weather did not guarantee that the snow cap would last. After a few days, the snow cap was much reduced as temperatures creeped above freezing. And part of the snow cap was likely blown away by wind, according to Weather News.

While local weather conditions are key to whether Fuji’s snow cap is present on any given day, long-term climate data indicates that conditions on the peak are changing. One recent study found the mountain’s timberline had moved upslope by 30 meters (100 feet) over the past four decades, likely due to a 2 degree Celsius (3.6 degrees Fahrenheit) increase in summer temperatures near the peak.

NASA Earth Observatory images by Joshua Stevens, using Landsat data from the U.S. Geological Survey and MODIS data from the National Snow and Ice Data Center. Story by Adam Voiland.
#EarthObservatory #NASA #MountFuji #Japan #Snow
 
Today, space travel history is to be written.



#space #travel #science #iss #spacex #nasa #crew1 #crew-1 #dragon #go #go #go! ;)
 
#TheGuardian #ESA #NASA #CSA #JAXA
 
I somewhat hate to say it .. and it is the completely wrong time to do this...

But .... Congratulations United States of America for this successful Dragon Demo 2 Mission.

I love to see Bob and Doug back on earth... You people did a great job nonetheless.....

Now, please get all that other shit around in order soon ..... in a free and democratic manner, as you always promised us. ;)


#NASA #SpaceX #Crew #Dragon-2 #DM-2 #history #usa #spaceflight #randomshit
 
#Mars #planete #science #technologie #technology #rover #nasa

Une petite promenade sur la planète rouge, ça te dit??
époustouflant hein??
enjoy :D

 
#Mars #planete #science #technologie #technology #rover #nasa

Une petite promenade sur la planète rouge, ça te dit??
époustouflant hein??
enjoy :D

 

Ten years of the #Sun in one hour – #Nasa releases mesmerising #space #film | #Science | The Guardian


https://www.theguardian.com/science/2020/jul/01/ten-years-of-the-sun-in-one-hour-nasa-releases-mesmerising-space-film


#Astronomy #Physics
 
#Javascript kan into speis!
#spacex #nasa

Twitter: Jason Mayes on Twitter (Jason Mayes)

 
#Javascript kan into speis!
#spacex #nasa

Twitter: Jason Mayes on Twitter (Jason Mayes)

 
Bild/Foto

Elon Musk: "The trampoline is working!" :)

https://www.youtube.com/watch?v=eZkfrjwoEMI EN

https://www.youtube.com/watch?v=V8fvWZPIIo0 RU

[The Moscow Times]

Russian space agency chief Dmitry Rogozin once ridiculed the lack of a U.S. manned flight programme, saying it might as well "deliver its astronauts to the ISS by using a trampoline".

Six years later Elon Musk and NASA had the last laugh.

"The trampoline is working," quipped the 48-year-old U.S. entrepreneur at a post-flight news conference alongside NASA administrator Jim Bridenstine.

Both men laughed. "It's an inside joke," Musk added.

On Saturday, his SpaceX made history by becoming the first commercial company to send humans into orbit.

The U.S. feat and Musk's joke set Russian social media alight, with wits ridiculing Rogozin, and the Russian space chief's name began trending on Twitter.

"How do you like this, Dmitry Rogozin?" one critic prodded.

Russia still prides itself on sending the first human into orbit in 1961 and other achievements of the Soviet-era space programme.

Rogozin has remained conspicuously silent but his spokesman was forced to react.

"We don't really understand the hysteria sparked by the successful launch of a Crew Dragon spacecraft," spokesman Vladimir Ustimenko said on Twitter.

"What should have happened a long time ago happened," he added.

While cosmonaut Sergei Krikalev, Roscosmos executive director for crewed space programmes, saluted the US achievement in a brief video address, not everyone was in such a gracious mood.

Alexey Pushkov, a member of the upper house of parliament, declared Saturday's flight was not a big deal.

"This is a flight to the International Space Station, not to Mars," he said on messaging app Telegram.

He pronounced it time to stop ferrying Americans to the orbiting lab.

"Russia needs spaces for its own young cosmonauts."

https://www.themoscowtimes.com/2020/05/31/trampoline-is-working-musk-taunts-russia-a70433
(c) Photo: MK

#NASA #SpaceX #Falcon #rocket #Dragon #astronauts #Earth #Station #news #photo #video #Musk #US #USA #technology #America #lang ru #roskosmos #russia #trampoline #батут #politics
 
Bild/Foto

LIFT OFF!



P.S. God Bless America. Thank you, Elon!


#NASA #SpaceX #Falcon #rocket #Dragon #astronauts #Earth #Station #news #photo #video #Musk #US #USA #technology #America

Photo: Steve Jurvetson, 2019. Creative Commons Attribution 2.0 Generic license
 

T-3h24m for SpX DM-2


2nd launch attempt for SpaceX Crew Dragon Demo-2 Mission which is scheduled for launch to the International Space Station on 30 May 2020 at 19:22:45 UTC (3:22:45 PM EDT). (21:22:35 CEST)

Coverage:
* SpaceX Live Webcast
* SpaceX Mission Control Audio
* NASA Livestream; Making History: NASA and SpaceX Launch Astronauts to Space!
* Every Astronaut Hosted Livestream

#2nd #launch #Space #spacetravel #nasa #spacex #crew #dragon #demo-2 #mission #iss #launchamerica

YouTube: Crew Demo-2 (SpaceX)

 
Later posts Earlier posts