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SOL961-2P211675276ESFAS00P2411L2M1.jpgWaiting for Springtime... (2) - Sol 96169 visiteSpirit is beginning to see an upward trend in electrical power as Winter slowly recedes and the Sun ascends higher in the sky each day. Electrical power from the Rover's solar array rose to 287 watt-hours on the Rover's 958th Sol (such as Sept. 12, 2006) of exploration, compared with 277 watt-hours on Sol 944 (such as Aug. 29, 2006). One hundred watt-hours is the amount of electricity needed to light one 100-watt bulb for one hour.
During the past week, Spirit conducted 10 hours of analysis of the elemental composition of dust on the Rover's magnets using the Alpha Particle X-ray Spectrometer. Spirit also finished taking images of the spacecraft deck.
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OPP-SOL617-1N182980592EFF6300P1591L0M1-1.jpgBright light near the setting Sun - Sol 61769 visiteNonostante la nostra elaborazione in "colori naturali", ancora emerge molto nettamente un delicato ed "inquietante" dettaglio: accanto al Sole, ormai prossimo al tramonto, c'è qualcosa che brilla.
Non è un image-artifact e non crediamo che sia la Terra. Che cosa resta?...
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Titan-Lakes-Unnamed_North_Polar_Lakes-06-PIA08740.jpgTitanian Northern Lakes (6)69 visiteCaption NASA originale:"This Cassini radar image shows two lakes "kissing" each other on the surface of Saturn's moon Titan.
The image has been taken from a fly-by occurred on Sept. 23, 2006, and covers an area of about 60 Km (approx. 37 miles) wide by 40 Km (approx. 25 miles) high.
This pass was primarily dedicated to the ion and neutral mass spectrometer instrument, so although, the volume of radar data was small, scientists were amazed to see Earth-like lakes. With Titan's colder temperatures and hydrocarbon-rich atmosphere, however, the lakes likely contain a combination of methane and ethane, not water.
In this image, near 73° North Latitude and 46° West Longitude, two lakes are seen, each 20 to 25 Km (approx. 12 to 16 miles) across. They are joined by a relatively narrow channel. The lake on the right has lighter patches within it, indicating that it may be slowly drying out as the Northern Summer approaches".
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068-OPP-SOL020-1P129982625EDN0352P2662L2M1.jpgSunset on a VERY foggy day... (2)69 visitenessun commento
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OPP-SOL953-Victoria1c_opportunity-02.jpgThe "colors of Victoria", according to "Aviation Week" (3)69 visitenessun commento
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OPP-SOL957-1P213145911EFF76LJP2394R1M1.jpgVictoria Crater (9) - Sol 95769 visiteCaption NASA:"Right PanCam Non-linearized Full frame EDR acquired on Sol 957 of Opportunity's mission to Meridiani Planum at approximately 13:53:46 MLT, camera commanded to use Filter 1 (436 nm)".
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Enceladus-PIA08280.jpgThe active South Pole of Enceladus69 visiteCaption NASA originale:"The wrinkled border of Enceladus' South Polar Region snakes across this view, separating fresher, younger terrain from more ancient, cratered provinces.
This is the Region of Enceladus that is known to be presently geologically active. At right are clearly visible ridges and troughs thought to be caused (probably) by compressional stresses across the icy surface.
The image was taken in polarized green light with the Cassini spacecraft narrow-angle camera on Sept. 9, 2006 at a distance of approx. 66.000 Km (such as about 41.000 miles) from Enceladus and at a Sun-Enceladus-spacecraft, or phase, angle of 104°. Image scale is roughly 396 mt (about 1.300 feet) per pixel".
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ZZ-ZZ-ZZ-ZZ-ZZ-Lunar South Pole.jpgNo "Lunar Ice" at the South Pole...69 visite"...a new radar survey of the Moon’s Southern Pole has cast doubt on the hope that there might be accessible deposits of water ice in permanently dark craters. This new survey, performed with the Arecibo Observatory in Puerto Rico, found elevated Hydrogen levels in regions of bright sunlight - not just inside the shadowed walls of craters. It seems that scattered rocks associated with impact craters have given previous instruments a false reading...".
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APOLLO 16 AS 16-118-18885.jpgAS 16-118-18885 - Baja California69 visiteCaption NASA originale:"View of Earth during Trans-Lunar Coast. Baja California is at the center of the image".
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TRA_000827_1875_IRB.jpgCerberus' River69 visiteThe prominent trough in this sub-image (of HiRISE image TRA_000827_1875_IRB ) is a segment of the Cerberus Fossae rift system. In geological terminology the trough is known as a graben, or down-dropped region bounded by faults. In this location the graben is about 300 m wide and 90 m deep. Bright, dust-covered, cratered plains surround the graben, and darker sediments blanket much of its floor. Dunes that vary in size and spacing occur within the darker sediments, and their shapes suggest that the wind typically blows from east to west. Light-toned, angular boulders pepper the darker sediments. They have broken away from the rocky walls of the graben and tumbled downhill. Over time this mass wasting has caused the cliffs to retreat, widening the trough. The somewhat lighter patches of cratered terrain on the graben floor were once level with the surrounding plains, but have since been lowered by faulting. Over time they may become obscured or buried by the darker sediments. High-standing ridgesÑremnants of the former surfaceÑcast jagged shadows on the floor of the graben that reveal the rugged nature of the landscape in this region of Mars.
Image TRA_000827_1875 was taken by the High Resolution Imaging Science Experiment (HiRISE) camera onboard the Mars Reconnaissance Orbiter spacecraft on September 29, 2006. The complete image is shown below, centered at 7.4 degrees latitude, 168.5 degrees East longitude. The range to the target site was 275 km (171 miles). At this distance the image scale is 55 cm/pixel (with 2 x 2 binning) so objects ~165 cm across are resolved. The image shown below has been map-projected to 50 cm/pixel and north is up. The image was taken at a local Mars time of 3:26 PM and the scene is illuminated from the west with a solar incidence angle of 51.9 degrees, thus the sun was about 38.1 degrees above the horizon. At a solar longitude of 113.7 degrees, the season on Mars is Northern Summer / Southern Winter.
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088-SOL932-McMurdo_L257F-A814R1_cbr2-01.jpgMc Murdo Panorama (2)69 visiteCaption NASA originale:"Spirit has stayed busy at Winter Haven during the past six months even without driving.
In addition to acquiring this spectacular panorama, the Rover Team has also acquired significant new assessments of the elemental chemistry and mineralogy of rocks and soil targets within reach of the rover's arm. The team plans soon to have Spirit drive to a very nearby spot on Low Ridge to access different rock and soil samples while maintaining a good solar panel tilt toward the Sun for the rest of the Martian Winter.
Despite the long span of time needed for acquiring this 360° view - a few images at a time every few Soles over a total of 119 Soles because the available power was so low -- the lighting and color remain remarkably uniform across the mosaic".
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APOLLO 11 AS 11-44-6689HR.jpgAS 11-44-6689 (HR)69 visite
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