Lancement d'une fusée SpaceX.
Puisque c'était une mise en orbite d'un satellite classé defense, on a droit de bout en bout au visuel du premier étage (d'habitude la vidéo switche entre premier etage et second), celui qui permet la réutilisation.
On passe donc en 10 min du sol à 100km puis retour au sol.
mise à jour des données satellite de toute la terre toute les 3h
"This tool from NASA's EOSDIS provides the capability to interactively browse global, full-resolution satellite imagery and then download the underlying data. Most of the 150+ available products are updated within three hours of observation, essentially showing the entire Earth as it looks "right now". This supports time-critical application areas such as wildfire management, air quality measurements, and flood monitoring. Arctic and Antarctic views of several products are also available for a "full globe" perspective. Browsing on tablet and smartphone devices is generally supported for mobile access to the imagery."
SpaceX a déposé une demande pour mettre orbite 4425 satellites en orbite basse. Il y a actuellement 1400 satellites opérationnels dont 800 en orbite basse.
Ces satellites sont destinés à couvrir toute la terre avec de l'Internet très haut débit
"The picture shows Sentinel-1A’s solar array before and after the impact of a millimetre-size particle on the second panel. The damaged area has a diameter of about 40 cm, which is consistent on this structure with the impact of a fragment of less than 5 millimetres in size."
L'accélération dans l'ISS durant une remise sur orbite (même à cette distance - de 300 à 400km - il reste un infime frottement de l'air, qui oblige à réaccélérer l'ISS afin qu'elle reste en orbite)
un mec a fait une vidéo du lancement d'une navette spatiale pour permettre à ceux qui n'ont jamais eu ou n'auront jamais l'occasion d'assister à un lancement de fusée de faire "comme si on y était". A écouter fort mais pas trop, si on veut pas péter ses enceintes ^^
"Interestingly, from 500 km up, you can only see about 20 degrees around the Earth in any direction. That's just about 6% of the Earth's circumference.
If my lazy scratchwork is right, in terms of area, you can only see about 0.08% of the Earth's surface from 500 km up."
A view of the International Space Station and the Moon as seen by the crew of STS-135, the final mission of the American Space Shuttle Program, in July 2011
Every day of every year, NASA satellites provide useful data about our home planet, and along the way, some beautiful images as well. This video includes satellite images of Earth in 2014 from NASA and its partners as well as photos and a time lapse video from the International Space Station. We’ve also included a range of data visualizations, model runs, and a conceptual animation that were produced in 2014 (but in some cases might have been utilizing data from earlier years.)
Voyage du soleil vers jupiter à la vitesse de la lumière. Je trouve que ça met très bien en perspective les distances énormes, gigantesques, du système solaire : le voyage est très lent :)
Titan devant Saturne
"This mosaic combines six images -- two each of red, green and blue spectral filters -- to create this natural color view. The images were obtained with the Cassini spacecraft wide-angle camera on May 6, 2012, at a distance of approximately 483,000 miles (778,000 kilometers) from Titan. Image scale is 29 miles (46 kilometers) per pixel on Titan." from http://photojournal.jpl.nasa.gov/catalog/PIA14922
old mais je pensais avoir le lien sur mon shaarli :
caméras embarqués sur les propulseurs d'Atlantis, du lancement à l'espace, pour arriver en pleine mer.
"NASA’s Voyager 1 spacecraft recorded the sounds using an onboard plasma wave instrument. This instrument detected the vibrations of dense interstellar plasma, or ionised gas, from October to November 2012 and April to May 2013. The waves detected by the instrument antennae can be simply amplified and played through a speaker. These frequencies are within the range heard by human ears.
The image is of the central 50 pc (~150 light years) of the Galactic centre showing ionised gas, hot and warm dust. Credit: Hubble Space Telescope, Chandra X-ray Observatory and the Spitzer Space Telescope"