|
|
Martian_Pyramids.jpgMartian Pyramids (by Roberto Tremolada)104 visitenessun commentoMareKromium
|
|
Martian_Rocks_(Roberto_Tremolada).jpgFretted Terrain and Distant Mountains (by Roberto Tremolada)72 visitenessun commentoMareKromium
|
|
Martian_Snow-1.jpgOnce Upon A Time, On Mars... (by Roberto Tremolada)80 visitenessun commentoMareKromium
|
|
Martian_Snow-2.jpgPolar Vision (by Roberto Tremolada)96 visitenessun commentoMareKromium
|
|
Martian_Spring.jpgSpring on Mars (by Roberto Tremolada & Lunexit)82 visitenessun commentoMareKromium
|
|
Martian_Winter.jpgWinter on Mars (by Roberto Tremolada & Lunexit)85 visitenessun commentoMareKromium
|
|
Melas_Chasma-MO-20031114a.jpgMelas Chasma88 visiteThis spectacular view of the sunlit cliffs and basaltic sand dunes in Southern Melas Chasma shows Mars in a way rarely seen: in full, realistic color. The colorization is the result of a collaboration between THEMIS Team Members at Cornell University and Space Artist Don Davis, who is an expert on true-color renderings of planetary and astronomical objects. Davis began with calibrated and co-registered THEMIS VIS multi-band radiance files produced by the Cornell group. Using as a guide true-color imaging from the HST and his own personal experience at Mt. Wilson and other observatories, he performed a manual color balance to match more closely the colors of previous visual Mars observations. He also did some manual smoothing and other image processing to mimimize the effects of residual scattered light in the images. The result is a view of Mars that invites comparisons to Earth; a scene that one might observe out the window on a flight over the southwest USA, but not quite. The basaltic dunes are commonplace on Mars but a rare feature on Earth. The rounded knobs and elongated mesas on the canyon floor show an erosional style as exotic as Utah's Bryce Canyon but wholly familiar on Mars. Although the inhospitable Martian atmosphere cannot be seen, the magnificent Martian landscape on display in this image beckons space-suited human explorers and the sightseers who will follow.
|
|
Melas_Chasma-PIA02893.jpgMelas Chasma101 visiteSoaring high above Valles Marineris, the "Grand Canyon of Mars" viewers look down and catch a sight resembling parts of the desert West of the United States, but on a vastly greater scale. Here the canyon averages over a hundred miles wide, and its floor is heaped with rocks, sediments, and landslide debris. Within the canyon walls lie possibly hundreds of layers filling many pages of Mars' geologic record.
This scene comes from "Flight Through Mariner Valley" an exciting video produced for NASA by the Jet Propulsion Laboratory. The video takes viewers on a simulated flight into Valles Marineris, where they explore its scenic wonders as their imaginary scout ship dives low over landslides and races through winding canyons.
The video features HR images from Arizona State University's Thermal Emission Imaging System multi-band camera on NASA's Mars Odyssey. The images, which show details as small as 300 mt (about 1000 feet) across, were taken at infrared wavelengths during the Martian daytime.
Scientists joined hundreds of individual frames from the camera into a giant mosaic, then colored the mosaic to approximate how Mars would appear to the human eye.
To give the mosaic depth and height, moviemakers fitted it to a computerized topographic model for Valles Marineris. This was developed using hundreds of thousands of altitude measurements by the Mars Orbiter Laser Altimeter, an instrument on NASA's Mars Global Surveyor spacecraft.
|
|
Memoires.JPGMemories of Cydonia... (by Roberto Tremolada)104 visitenessun commentoMareKromium
|
|
Minerals-2F224823069EFFASNUP1214R0M1.jpgMineral Diversity (by Marco Faccin)88 visiteQualcuno dice che "...i colori (di un Mondo), in fondo, sono irrilevanti...". Noi crediamo che questa asserzione sia completamente assurda...
Osservate Voi stessi!MareKromium
|
|
Mohai.jpgWaiting for the Sunset (by Roberto Tremolada)68 visitenessun commentoMareKromium
|
|
MorningLights.jpgMorning Lights...94 visiteNel quadro delle innumerevoli opinioni sulle apparenze di Marte (ovvero sul come un occhio umano vedrebbe il Panorama Marziano "da" Marte), ci piace inserire questa nuova elaborazione ottenuta dai nostri due (bravissimi) Tecnici dell'Immagine: luci del mattino (un "cupo" e nebbioso mattino) sull'ormai lontano Endurance Crater.
Assunzioni di partenza: elevata O.A., cielo parzialmente coperto da nuvole stratiformi poste ad altezze comprese fra i 3 ed i 5 Km, luminosità di base del Sole - che è ancora bassissimo sull'orizzonte - pari ad 1/3-1/4 della luminosità media di un'alba terrestre, colore dominante di base e di fondo: arancio/marrone.
|
|
| 126 immagini su 11 pagina(e) |
 |
3 | |
|
|
|
|
|
|
|
