20 Years of Mars Express Images Helped Build This Mosaic of the Red Planet universetoday storybywill
Since it was commissioned in January 2004, the HRSC has imaged almost the entire planet at resolutions of 50 to 20 m per pixel. Normally, the mission would photograph Mars from an altitude of about 300 km when the spacecraft is closest in its orbit to the planet. However, for the mosaic, 90 individual images taken from altitudes of 4,000 to 10,000 km were used, covering an area roughly 2500 km in diameter and with a spatial resolution of 2 km per pixel.
Another impressive feature is the level of color captured in the images. Ordinarily, it is very difficult to take pictures of Mars that accurately capture its surface color because of the ever-changing transparency of its atmosphere. This is caused by the varying degrees of dust in the atmosphere, which causes light to be scattered and reflected, leading to color shifts between images.
This time, a new high-altitude observation campaign was used to construct a global color model, which the HRSC team used to color-reference each image in the mosaic. This allowed for long-range color variations and resulted in a picture of Mars with a level of color diversity never seen before. The color variations also reveal information about its composition, which includes the high amount of oxidized iron in its surface regolith.
Österreich Neuesten Nachrichten, Österreich Schlagzeilen
Similar News:Sie können auch ähnliche Nachrichten wie diese lesen, die wir aus anderen Nachrichtenquellen gesammelt haben.
Man sentenced 40 years for sharing child sexual abuse images, videos while living in ConroeRegistered sex offender sentenced 40 years for sharing child sexual abuse images, video in Texas, Wisconsin
Weiterlesen »
Woman sentenced to 9 years with 5 years suspended for killing man in hit and runA woman was sentenced to 9 years in prison with 5 of those years suspended after pleading guilty to charges stemming from a hit and run that killed 38-year-old Enrique Gaspar.
Weiterlesen »
Where is I-55 expansion plan with tolled express lanes heading?Will I-55 expand with tolled lanes? Not any time soon. IDOT_Illinois
Weiterlesen »
Mavericks express interest in Jeff Van Gundy for assistant coaching gig, report saysThe Mavericks could consider adding well-known veteran presences to Jason Kidd’s coaching staff this offseason. NBA correspondent Marc Stein reported Monday...
Weiterlesen »
Gas stove protection bills suffer major setback as House Republicans express frustration with McCarthyA group of House Republicans tanked legislation aimed at blocking the federal government from banning gas stoves in response to GOP leaders' debt ceiling deal with Democrats.
Weiterlesen »
Jets express confidence as Quinnen Williams contract dispute baffles others across NFLFLORHAM PARK, N.J. — The deal is not yet done.
Weiterlesen »