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L'espace par l'image

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Jeannot
Whisky Quebec

L'espace par l'image

Message par Jeannot le Jeu 24 Juil 2014 - 0:20

J'ouvre un nouveau fil consacré aux photos ou images de synthèse consacrées à l'espace.

J'ouvre le bal par cette photo du LEM Eagle d'Apollo 11 en route pour sa mission.



The Apollo 11 Lunar Module Eagle, in a landing configuration was photographed in lunar orbit from the Command and Service Module Columbia. Inside the module were Commander Neil A. Armstrong and Lunar Module Pilot Buzz Aldrin. The long rod-like protrusions under the landing pods are lunar surface sensing probes. Upon contact with the lunar surface, the probes sent a signal to the crew to shut down the descent engine. Image Credit: NASA 

Poncho (Admin)
Whisky Charlie

Re: L'espace par l'image

Message par Poncho (Admin) le Jeu 24 Juil 2014 - 11:10

Sacrée aventure quand même ! Avec le moyens d'époque en plus


_________________
@avia.poncho

eolien
Whisky Quebec

Re: L'espace par l'image

Message par eolien le Jeu 24 Juil 2014 - 12:03

Oui Poncho, on a rien fait de plus fort depuis.

Pendant longtemps je me suis demandé comment était possible la remise de gaz en cas d'échec à l'alunissage pour rejoindre le Command Module qui tournait autour de la Lune, ce dernier s'étant très éloigné durant la descente du LEM. (J'ai bien une idée...)


_________________
Eolien
La dialectique est l'art d'atteindre la vérité au moyen de la discussion des opinions.

Poncho (Admin)
Whisky Charlie

Re: L'espace par l'image

Message par Poncho (Admin) le Jeu 24 Juil 2014 - 12:07

C'est à dire ?


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Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Mar 29 Juil 2014 - 13:04

Le long chemin du Rover "Opportunity" sur la planète rouge

http://www.nasa.gov/press/2014/july/nasa-s-long-lived-mars-opportunity-rover-sets-off-world-driving-record/

NASA's Mars Exploration Rover Opportunity, working on Mars since January 2004, passed 25 miles of total driving on July 27, 2014. The gold line on this map shows Opportunity's route from the landing site inside Eagle Crater (upper left) to its location after the July 27 (Sol 3735) drive.
Image Credit: 
NASA/JPL-Caltech/MSSS/NMMNHS

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Mer 30 Juil 2014 - 13:15

Toujours impressionnantes ces photos du soleil surtout quand notre lune passe entre le soleil et l'objectif.



Solar Dynamics Observatory Captures Images of Lunar Transit
On July 26, 2014, from 10:57 a.m. to 11:42 a.m. EDT, the moon crossed between NASA’s Solar Dynamics Observatory (SDO) and the sun, a phenomenon called a lunar transit. A lunar transit happens approximately twice a year, causing a partial solar eclipse that can only be seen from SDO's point of view. Images of the eclipse show a crisp lunar horizon, because the moon has no atmosphere that would distort light. This image shows the blended result of two SDO wavelengths - one in 304 wavelength and another in 171 wavelength.
Image Credit: NASA/SDO

http://www.nasa.gov/content/solar-dynamics-observatory-captures-images-of-lunar-transit/#.U9jKdKMe3_o

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Ven 1 Aoû 2014 - 12:57


Cette photo n'est pas extraordinaire en soit sauf quelle a été prise le 31 juillet 1964 (combien parmi nous étaient déjà nés) par "Ranger 7", 17 minutes avant de s'écraser sur la Lune. C'est la première photo de la surface de la lune prise par un appareil US.



First Image of the Moon Taken by a U.S. Spacecraft
Ranger 7 took this image, the first picture of the moon by a U.S. spacecraft, on July 31, 1964 at 13:09 UT (9:09 AM EDT), about 17 minutes before impacting the lunar surface. The area photographed is centered at 13 S, 10 W and covers about 360 km from top to bottom. The large crater at center right is the 108 km diameter Alphonsus. Above it is Ptolemaeus and below it Arzachel. The terminator is at the bottom right corner. Mare Nubium is at center and left. North is at about 11:00 at the center of the frame. The Ranger 7 impact site is off the frame, to the left of the upper left corner. 
The Ranger series of spacecraft were designed solely to take high-quality pictures of the moon and transmit them back to Earth in real time. The images were to be used for scientific study, as well as selecting landing sites for the Apollo moon missions. Ranger 7 was the first of the Ranger series to be entirely successful. It transmitted 4,308 high-quality images over the last 17 minutes of flight, the final image having a resolution of 0.5 meter/pixel.
Ranger 7 was launched July 28, 1964 and arrived at the moon on July 31, 1964.
> Moon Mission 50-Year Anniversary: A Vintage Look Back
Image Credit: NASA

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Sam 2 Aoû 2014 - 15:06

vu de la péninsule ibérique depuis l'ISS le 26 juillet 2014.





Iberian Peninsula at Night
ISS040-E-081320 (26 July 2014) --- One of the Expedition 40 crew members aboard the International Space Station recorded this early evening photo of the entire Iberian Peninsula (Spain, Portugal and Andorra) on July 26, 2014. Part of France can be seen at the top of the image and the Strait of Gibraltar is visible at bottom, with a very small portion of Morocco visible near the lower right corner.
Image Credit: NASA

http://www.nasa.gov/content/iberian-peninsula-at-night/#.U9zhdqMe3_o

massemini
Whisky Quebec

Re: L'espace par l'image

Message par massemini le Sam 2 Aoû 2014 - 16:44

eolien a écrit:Oui Poncho, on a rien fait de plus fort depuis.

Pendant longtemps je me suis demandé comment était possible la remise de gaz en cas d'échec à l'alunissage pour rejoindre le Command Module qui tournait autour de la Lune, ce dernier s'étant très éloigné durant la descente du LEM. (J'ai bien une idée...)

Je n' ai rien lu sur le sujet, mais on peut raisonnablement penser que le LEM aurait été réorienté (axe vertical perpendiculaire au sol), et la mise à feu de l' étage supérieur commandée.
Le 1er étage ne servant que pour l' alunissage et comme base de départ pour le retour sur Terre, serait allé s' écraser sur la lune, le LEM rejoignant l' orbite du CM qu' il avait abandonné depuis peu, comme il le fera 2 jours après, en fin de mission.
Si mon idée n' est pas bonne, je ne devine pas une autre solution.....

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Sam 2 Aoû 2014 - 17:02

Sur ce point ja partage complètement votre réflexion (il faut fêter cela)

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Mer 6 Aoû 2014 - 15:36

Rappel de l'atterrissage sur Mars du Rover Curiosity il y a deux ans



Two Years Ago, Curiosity Rover Lands on Mars, Captures Image of Mount Sharp
This image was captured by NASA's Mars rover Curiosity shortly after it landed on the Red Planet on the evening of Aug. 5, 2012 PDT (morning of Aug. 6 EDT), near the foot of a mountain three miles tall and 96 miles in diameter inside Gale Crater. The image shows the rover's main science target, Mount Sharp. The rover's shadow can be seen in the foreground, and the dark bands beyond are dunes. Rising up in the distance is Mount Sharp, whose peak is 3.4 miles (5.5 kilometers) high, taller than Mt. Whitney in California. The actual summit is not visible from this vantage point -- the highest elevation seen in this view is about 2.5 miles (4 kilometers) above the rover.
On June 24, 2014, Curiosity completed one Martian year -- 687 Earth days -- having accomplished the mission's main goal of determining whether Mars once offered environmental conditions favorable for microbial life. One of Curiosity's first major findings after landing in August 2012 was an ancient riverbed at its landing site. Nearby, at an area known as Yellowknife Bay, the mission met its main goal of determining whether the Martian Gale Crater ever was habitable for simple life forms. The answer, a historic "yes," came from two mudstone slabs that the rover sampled with its drill. Analysis of these samples revealed the site was once a lakebed with mild water, the essential elemental ingredients for life, and a type of chemical energy source used by some microbes on Earth. If Mars had living organisms, this would have been a good home for them.
Image Credit: NASA/JPL-CalTech

http://www.nasa.gov/content/two-years-ago-curiosity-rover-lands-on-mars-captures-image-of-mount-sharp/#.U-Itu6Me3_p

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Jeu 7 Aoû 2014 - 13:37

Voici la zone pu la sonde européenne Rosetta pourrait essayer de se poser sur la comète 67P/Churyumov-Gerasimenko. N'oublions pas que le voyage aura duré plus de 10 ans



Rosetta's Target Up Close
Close up detail focusing on a smooth region on the ‘base’ of the ‘body’ section of comet 67P/Churyumov-Gerasimenko. The image was taken by Rosetta’s Onboard Scientific Imaging System (OSIRIS) on August 6, 2014. The image clearly shows a range of features, including boulders, craters and steep cliffs. The image was taken from a distance of 80 miles (130 kilometers) and the image resolution is 8 feet (2.4 meters) per pixel.
The three U.S. instruments aboard the spacecraft are the Microwave Instrument for Rosetta Orbiter (MIRO), an ultraviolet spectrometer called Alice, and the Ion and Electron Sensor (IES). They are part of a suite of 11 science instruments aboard the Rosetta orbiter.
MIRO is designed to provide data on how gas and dust leave the surface of the nucleus to form the coma and tail that gives comets their intrinsic beauty. Studying the surface temperature and evolution of the coma and tail provides information on how the comet evolves as it approaches and leaves the vicinity of the sun.
Alice will analyze gases in the comet's coma, which is the bright envelope of gas around the nucleus of the comet developed as a comet approaches the sun. Alice also will measure the rate at which the comet produces water, carbon monoxide and carbon dioxide. These measurements will provide valuable information about the surface composition of the nucleus.
NASA also provided part of the electronics package for the Double Focusing Mass Spectrometer, which is part of the Swiss-built Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA) instrument. ROSINA will be the first instrument in space with sufficient resolution to be able to distinguish between molecular nitrogen and carbon monoxide, two molecules with approximately the same mass. Clear identification of nitrogen will help scientists understand conditions at the time the solar system was formed.
U.S. scientists are partnering on several non-U.S. instruments and are involved in seven of the mission's 21 instrument collaborations. NASA's Deep Space Network is supporting ESA's Ground Station Network for spacecraft tracking and navigation.
Launched in March 2004, Rosetta was reactivated in January 2014 after a record 957 days in hibernation. Composed of an orbiter and lander, Rosetta's objectives upon arrival at comet 67P/Churyumov-Gerasimenko in August are to study the celestial object up close in unprecedented detail, prepare for landing a probe on the comet's nucleus in November, and track its changes as it sweeps past the sun.
Comets are time capsules containing primitive material left over from the epoch when the sun and its planets formed. Rosetta's lander will obtain the first images taken from a comet's surface and will provide the first analysis of a comet's composition by drilling into the surface. Rosetta also will be the first spacecraft to witness at close proximity how a comet changes as it is subjected to the increasing intensity of the sun's radiation. Observations will help scientists learn more about the origin and evolution of our solar system and the role comets may have played in seeding Earth with water, and perhaps even life.
For more information on the U.S. instruments aboard Rosetta, visit: http://rosetta.jpl.nasa.gov
More information about Rosetta is available at: http://www.esa.int/rosetta
Image Credit: ESA/Rosetta/MPS for OSIRIS Team

http://www.nasa.gov/content/rosettas-target-up-close/#.U-Nj36Me3_o

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Mer 13 Aoû 2014 - 18:34

J'avais vu sur Arte une explication de ce phénomène d"mission de lumière depuis un trou noir. Ici l'illustration est superbe !



NASA's NuSTAR Sees Rare Blurring of Black Hole Light
The regions around supermassive black holes shine brightly in X-rays. Some of this radiation comes from a surrounding disk, and most comes from the corona, pictured here in this artist's concept as the white light at the base of a jet. This is one of a few possible shapes predicted for coronas.
Image Credit: 
NASA/JPL-Caltech

NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) has captured an extreme and rare event in the regions immediately surrounding a supermassive black hole. A compact source of X-rays that sits near the black hole, called the corona, has moved closer to the black hole over a period of just days.
"The corona recently collapsed in toward the black hole, with the result that the black hole's intense gravity pulled all the light down onto its surrounding disk, where material is spiraling inward," said Michael Parker of the Institute of Astronomy in Cambridge, United Kingdom, lead author of a new paper on the findings appearing in the Monthly Notices of the Royal Astronomical Society.
As the corona shifted closer to the black hole, the gravity of the black hole exerted a stronger tug on the X-rays emitted by it. The result was an extreme blurring and stretching of the X-ray light. Such events had been observed previously, but never to this degree and in such detail.
Supermassive black holes are thought to reside in the centers of all galaxies. Some are more massive and rotate faster than others. The black hole in this new study, referred to as Markarian 335, or Mrk 335, is about 324 million light-years from Earth in the direction of the Pegasus constellation. It is one of the most extreme of the systems for which the mass and spin rate have ever been measured. The black hole squeezes about 10 million times the mass of our sun into a region only 30 times the diameter of the sun, and it spins so rapidly that space and time are dragged around with it.
Even though some light falls into a supermassive black hole never to be seen again, other high-energy light emanates from both the corona and the surrounding accretion disk of superheated material. Though astronomers are uncertain of the shape and temperature of coronas, they know that they contain particles that move close to the speed of light.
NASA's Swift satellite has monitored Mrk 335 for years, and recently noted a dramatic change in its X-ray brightness. In what is called a target-of-opportunity observation, NuSTAR was redirected to take a look at high-energy X-rays from this source in the range of 3 to 79 kiloelectron volts. This particular energy range offers astronomers a detailed look at what is happening near the event horizon, the region around a black hole from which light can no longer escape gravity's grasp.
Follow-up observations indicate that the corona still is in this close configuration, months after it moved. Researchers don't know whether and when the corona will shift back. What is more, the NuSTAR observations reveal that the grip of the black hole's gravity pulled the corona's light onto the inner portion of its superheated disk, better illuminating it. Almost as if somebody had shone a flashlight for the astronomers, the shifting corona lit up the precise region they wanted to study.
The new data could ultimately help determine more about the mysterious nature of black hole coronas. In addition, the observations have provided better measurements of Mrk 335's furious relativistic spin rate. Relativistic speeds are those approaching the speed of light, as described by Albert Einstein's theory of relativity.
"We still don't understand exactly how the corona is produced or why it changes its shape, but we see it lighting up material around the black hole, enabling us to study the regions so close in that effects described by Einstein's theory of general relativity become prominent," said NuSTAR Principal Investigator Fiona Harrison of the California Institute of Technology (Caltech) in Pasadena. "NuSTAR's unprecedented capability for observing this and similar events allows us to study the most extreme light-bending effects of general relativity."
NuSTAR is a Small Explorer mission led by Caltech and managed by NASA's Jet Propulsion Laboratory (JPL) in Pasadena for NASA's Science Mission Directorate in Washington. The spacecraft was built by Orbital Sciences Corporation in Dulles, Virginia. Its instrument was built by a consortium including Caltech, JPL, the University of California, Berkeley, Columbia University, New York, NASA's Goddard Space Flight Center, Greenbelt, Maryland, the Danish Technical University in Denmark, Lawrence Livermore National Laboratory in Livermore, California, ATK Aerospace Systems in Goleta, California, and with support from the Italian Space Agency (ASI) Science Data Center.
NuSTAR's mission operations center is at UC Berkeley, with the ASI providing its equatorial ground station located in Malindi, Kenya. The mission's outreach program is based at Sonoma State University, Rohnert Park, California. NASA's Explorer Program is managed by Goddard. JPL is managed by Caltech for NASA.
For more information on NuSTAR, visit:
http://www.nasa.gov/nustar

patrick1956
Whisky Quebec

Re: L'espace par l'image

Message par patrick1956 le Mer 13 Aoû 2014 - 22:50

magnifique

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Ven 15 Aoû 2014 - 19:45

Explosion de la Supernova SN2014J





http://www.nasa.gov/chandra/multimedia/supernova-sn2014j.html#.U-5GKqOPb_q

Extrait de Wikipedia : http://fr.wikipedia.org/wiki/Supernova
Une supernova est l'ensemble des phénomènes conséquents à l'explosion d'une étoile, qui s'accompagne d'une augmentation brève mais fantastiquement grande de sa luminosité. Vue depuis la Terre, une supernova apparaît donc souvent comme une étoile nouvelle1, alors qu'elle correspond en réalité à la disparition d'une étoile.

eolien
Whisky Quebec

Re: L'espace par l'image

Message par eolien le Ven 15 Aoû 2014 - 19:47

Que de mystères ...  Sad


_________________
Eolien
La dialectique est l'art d'atteindre la vérité au moyen de la discussion des opinions.

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Mar 19 Aoû 2014 - 19:34

Le satellute RXTE de la Nasa permet de décoder le Ruthme d'un étrange trou noir.


NASA's RXTE Satellite Decodes the Rhythm of an Unusual Black Hole
Astronomers have uncovered rhythmic pulsations from a rare type of black hole 12 million light-years away by sifting through archival data from NASA's Rossi X-ray Timing Explorer (RXTE) satellite.
The signals have helped astronomers identify an unusual midsize black hole called M82 X-1, which is the brightest X-ray source in a galaxy known as Messier 82. Most black holes formed by dying stars are modestly-sized, measuring up to around 25 times the mass of our sun. And most large galaxies harbor monster, or supermassive, black holes that contain tens of thousands of times more mass.
“Between the two extremes of stellar and supermassive black holes, it's a real desert, with only about half a dozen objects whose inferred masses place them in the middle ground," said Tod Strohmayer, an astrophysicist at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
Astronomers from Goddard and the University of Maryland, College Park (UMCP) have suspected M82 X-1 of being midsize for at least a decade, but compelling evidence excluding it from being a stellar black hole proved elusive.
"For reasons that are very hard to understand, these objects have resisted standard measurement techniques," said Richard Mushotzky, a professor of astronomy at UMCP.
By going over past RXTE observations, the astronomers found specific changes in brightness that helped them determine M82 X-1 measures around 400 solar masses.
As gas falls toward a black hole, it heats up and emits X-rays.  Variations in X-ray brightness reflect changes occurring in the gas. The most rapid fluctuations happen  near the brink of the black hole’s event horizon, the point beyond which nothing, not even light, can escape.
Astronomers call these rhythmic pulses quasi-periodic oscillations, or QPOs.  For stellar black holes, astronomers have established that the larger the mass, the slower the QPOs, but they could not be sure what they were seeing from M82 X-1 was an extension of this pattern.
"When we study fluctuations in X-rays from many stellar-mass black holes, we see both slow and fast QPOs, but the fast ones often come in pairs with a specific 3:2 rhythmic relationship," explained Dheeraj Pasham, UMCP graduate student. For every three pulses from one member of a QPO pair, its partner pulses twice.
By analyzing six years of RXTE data, the team located X-ray variations that reliably repeat about 5.1 and 3.3 times a second, a 3:2 relationship. The combined presence of slow QPOs and a faster pair in a 3:2 rhythm sets a standard scale allowing astronomers to extend proven relationships used to determine the masses of stellar-mass black holes.
The results of the study were published online in the Aug. 17 issue of the journal Nature.
Launched in late 1995 and decommissioned in 2012, RXTE is one of NASA's longest-serving astrophysics missions. Its legacy of unique measurements continues to provide researchers with valuable insights into the extreme environments of neutron stars and black holes.
A new NASA X-ray mission called the Neutron Star Interior Composition Explorer (NICER) is slated for launch to the International Space Station in late 2016. Pasham has identified six potential middle-mass black holes that NICER may be able to explore for similar signals.

http://www.nasa.gov/press/2014/august/nasas-rxte-satellite-decodes-the-rhythm-of-an-unusual-black-hole/

Er le lien vers la video : https://www.youtube.com/watch?v=TSWZI2oUgnI&list=UUAY-SMFNfynqz1bdoaV8BeQ

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Dim 31 Aoû 2014 - 9:56

Le blanc et le noir vus par Hubble ou la naissance dune étoile



This new NASA/ESA Hubble Space Telescope image shows a variety of intriguing cosmic phenomena. Surrounded by bright stars, towards the upper middle of the frame we see a small young stellar object (YSO) known as SSTC2D J033038.2+303212. Located in the constellation of Perseus, this star is in the early stages of its life and is still forming into a fully-grown star. In this view from Hubble’s Advanced Camera for Surveys(ACS) it appears to have a murky chimney of material emanating outwards and downwards, framed by bright bursts of gas flowing from the star itself. This fledgling star is actually surrounded by a bright disk of material swirling around it as it forms — a disc that we see edge-on from our perspective. However, this small bright speck is dwarfed by its cosmic neighbor towards the bottom of the frame, a clump of bright, wispy gas swirling around as it appears to spew dark material out into space. The bright cloud is a reflection nebula known as [B77] 63, a cloud of interstellar gas that is reflecting light from the stars embedded within it. There are actually a number of bright stars within [B77] 63, most notably the emission-line star LkHA 326, and it nearby neighbor LZK 18. These stars are lighting up the surrounding gas and sculpting it into the wispy shape seen in this image. However, the most dramatic part of the image seems to be a dark stream of smoke piling outwards from [B77] 63 and its stars — a dark nebula called Dobashi 4173. Dark nebulae are incredibly dense clouds of pitch-dark material that obscure the patches of sky behind them, seemingly creating great rips and eerily empty chunks of sky. The stars speckled on top of this extreme blackness actually lie between us and Dobashi 4173. European Space Agency Credit: ESA/NASA


Dernière édition par Jeannot le Dim 31 Aoû 2014 - 12:14, édité 1 fois

eolien
Whisky Quebec

Re: L'espace par l'image

Message par eolien le Dim 31 Aoû 2014 - 10:03

Bonjour,

Les Anciens nommaient les étoiles Antares, Caciopée, Betelgeuse, Sirius, etc, etc...
Les modernes comme la trouvaille de Jeannot ci-dessus : SSTC2D J033038.2+303212
C'est romantique et commode pour la mémorisation ...


_________________
Eolien
La dialectique est l'art d'atteindre la vérité au moyen de la discussion des opinions.

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Dim 31 Aoû 2014 - 12:15

Pas faux Eolien mais d'un autre coté il y a un problème de nombre. Non ?

audac
Whisky Quebec

Re: L'espace par l'image

Message par audac le Dim 31 Aoû 2014 - 12:38

Jeannot a écrit:Pas faux Eolien mais d'un autre coté il y a un problème de nombre. Non ?
Non pas vraiment !
Il y a juste quelques milliards de milliards de cailloux dans l'espace, c'est juste une question de mémoire.

eolien
Whisky Quebec

Re: L'espace par l'image

Message par eolien le Dim 31 Aoû 2014 - 13:48

Les Anciens disaient : "Il gèle à pierre fendre "
Les modernes disent : "their thermodynamic temperature can be expressed as a negative quantity on the Kelvin or Rankine scales."

D'un côté la beauté des mots, de l'autre les nécessités de l'époque.
Une étoile, Caciopée. Le profane ne sait pas où elle est mais le mot évoque ou suggère la beauté.
L'étoile SSTC2D J033038.2+303212. Le profane ne sait pas où elle est mais son nom n'inspire pas l'esthétisme ...

Heureusement l'image proposée par Jeannot est magnifique. Smile




_________________
Eolien
La dialectique est l'art d'atteindre la vérité au moyen de la discussion des opinions.

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Dim 31 Aoû 2014 - 14:46

Image de synthèse du pochain lanceur d'Orion.

Cela fait plaisir de voir les choses avancer coté US. Pour un vol d'essai, le tour de la lune et retour ce n'est pas mal.



Artist Concept: Space Launch System Takes Flight
Artist concept of NASA’s Space Launch System (SLS) 70-metric-ton configuration launching to space. SLS will be the most powerful rocket ever built for deep space missions, including to an asteroid and ultimately to Mars. The first SLS mission -- Exploration Mission 1 -- will launch an uncrewed Orion spacecraft to a stable orbit beyond the moon and bring it back to Earth to demonstrate the integrated system performance of the SLS rocket and Orion spacecraft’s re-entry and landing prior to a crewed flight.
http://www.nasa.gov/sls/multimedia/gallery/sls-through-clouds.html#.VAMYyaNWIVh

Jeannot
Whisky Quebec

Re: L'espace par l'image

Message par Jeannot le Dim 31 Aoû 2014 - 14:55

Il y a 25 ans Voyager 2 a pris cette photo de  Neptune



25 Years Ago, Voyager 2 Captures Images of Neptune
NASA's Voyager 2 spacecraft gave humanity its first glimpse of Neptune and its moon Triton in the summer of 1989. This picture of Neptune was produced from the last whole planet images taken through the green and orange filters on the Voyager 2 narrow angle camera. The images were taken on Aug. 20, 1989, at a range of 4.4 million miles from the planet, 4 days and 20 hours before closest approach on Aug. 25. The picture shows the Great Dark Spot and its companion bright smudge; on the west limb the fast moving bright feature called "Scooter" and the little dark spot are visible. These clouds were seen to persist for as long as Voyager's cameras could resolve them. North of these, a bright cloud band similar to the south polar streak may be seen.
In the summer of 2015, another NASA mission to the farthest zone of the solar system, New Horizons, will make a historic first close-up study of Pluto. Although a fast flyby, New Horizons' Pluto encounter on July 14, 2015, will not be a replay of Voyager but more of a sequel and a reboot, with a new and more technologically advanced spacecraft and, more importantly, a new cast of characters. Those characters are Pluto and its family of five known moons, all of which will be seen up close for the first time next summer.
Image Credit: NASA

http://www.nasa.gov/content/25-years-ago-voyager-2-captures-images-of-neptune/#.VAMaOqNWIVg

Vector
Whisky Quebec

Re: L'espace par l'image

Message par Vector le Dim 31 Aoû 2014 - 15:14

Eolien a été entendu !


Baptisez une étoile

Contenu sponsorisé

Re: L'espace par l'image

Message par Contenu sponsorisé Aujourd'hui à 11:18


    La date/heure actuelle est Mar 6 Déc 2016 - 11:18