Mars Express

[Scorus]

To z okazji 10-lecia użytkowania kamery HRSC.
http://www.dlr.de/dlr/en/desktopdefault.aspx/tabid-10333/623_read-9204/#gallery/13397

[kanarkusmaximus]

Odgrzewam!

Dziś Mars Express przelatuje w odległości zaledwie 53 km od Fobosa. Mam nadzieję, że jakieś fotki zrobią.

[gelo]

W sumie nigdy się nad tym nie zastanawiałem - ktoś wie jaki był najbliższy przelot obok Fobosa?

[Scorus]

29 grudnia 2013 r, 45 km, w kompendium jest.

O wczorajszym przelocie:
http://blogs.esa.int/mex/2016/01/13/skimming-phobos/

[Orionid]

Na Arda Valles ślady po dużej ilości wody.

This perspective view in Arda Valles was generated from the main camera’s stereo channels on ESA’s Mars Express. The image focuses on a 25 km-wide impact crater filled with sediments, that have subsequently collapsed into chaotic terrain. The jumbled nodules in the crater rim probably indicate the former level of the infilling sediments.

A number of fracture-like features appear to extend out to the smoother basin floor to the right. They could be a later manifestation of stresses due to subsidence or compaction of surface materials.

The scene is part of region imaged by the High Resolution Stereo Camera on Mars Express on 20 July 2015 during orbit 14649. The main image is centred on 19°S / 327°E; the ground resolution is about 14 m per pixel.

http://www.esa.int/Our_Activities/Space_Science/Mars_Express/Footprints_of_a_martian_flood

[Scorus]

W czasie styczniowego przelotu koło Phobosa wyłączyła się kamera HRSC tak więc nie uzyskano zdjęć. Używane były natomiast instrumenty ASPERA i MARSIS.

http://blogs.esa.int/mex/2016/01/28/update-on-phobos-flyby-science-results/

[Scorus]

Kilka starszych zdjęć księżyców Marsa.

Deimos - 21.07.2013:
https://www.flickr.com/photos/132160802@N06/24155146123/

Phobos - 29.06.2013:
https://www.flickr.com/photos/132160802@N06/24688498141/

Phobos i Jowisz - 21.07.2013:
https://www.flickr.com/photos/132160802@N06/24755786926/

Phobos, Ziemia i Księżyc - 14.11.2013:
https://www.flickr.com/photos/132160802@N06/24755786926/

Phobos i Saturn - 28.06.2014:
https://www.flickr.com/photos/132160802@N06/24486470160/

[Scorus]

Amatorsko obrobione zdjęcia z HRSC.

Ma'adim Valles:
https://www.flickr.com/photos/132160802@N06/18225114403

Hadriaca Mons:
https://www.flickr.com/photos/132160802@N06/18686531880

Chmury w strefie polarnej:
https://www.flickr.com/photos/132160802@N06/18869022742

Krater Gale:
https://www.flickr.com/photos/132160802@N06/18719223289

Nilokeras Mensae:
https://www.flickr.com/photos/132160802@N06/18849404008

Parva Planum:
https://www.flickr.com/photos/132160802@N06/18416401783

Krater Holden:
https://www.flickr.com/photos/132160802@N06/19006473706

Reull Vallis:
https://www.flickr.com/photos/132160802@N06/18944657746

Nereidum Montes:
https://www.flickr.com/photos/132160802@N06/19006547220

Tharsis:
https://www.flickr.com/photos/132160802@N06/23843525423

Olympus Mons:
https://www.flickr.com/photos/132160802@N06/24402456392

Chryse Planitia:
https://www.flickr.com/photos/132160802@N06/23884029643

Auroae Chaos:
https://www.flickr.com/photos/132160802@N06/24530210285

Juventae Chasma:
https://www.flickr.com/photos/132160802@N06/24447872471

Phaethontis:
https://www.flickr.com/photos/132160802@N06/24162449319

Atlantis Chaos:
https://www.flickr.com/photos/132160802@N06/23903406643

Sirenum Fossae:
https://www.flickr.com/photos/132160802@N06/24530208045

Heliaspontes Montes:
https://www.flickr.com/photos/132160802@N06/23903405643
https://www.flickr.com/photos/132160802@N06/24782025665

Meridiani:
https://www.flickr.com/photos/132160802@N06/24414356319

Elysium:
https://www.flickr.com/photos/132160802@N06/24486481090
Terra Cimmera:
https://www.flickr.com/photos/132160802@N06/24234275454

Krater Hooke:
https://www.flickr.com/photos/132160802@N06/24862444565

[Scorus]

Chmury na dużych wysokościach. Nigdy jeszcze nie było takich zdjęć.

11 maja 2014:
https://www.flickr.com/photos/132160802@N06/24829566772/

5 czerwca 2014:
https://www.flickr.com/photos/132160802@N06/24579917349/
https://www.flickr.com/photos/132160802@N06/24854226741/

[Orionid]

Hellas Basin jest największym kraterem uderzeniowym na Marsie o 2200 km szerokości i 9 km głębokości.

This region spans a height difference of over 6000 m, stepping down like a staircase from the basin’s fractured, terraced rim to its flat, low-lying floor that is covered in frost or ice.

http://www.esa.int/Our_Activities/Space_Science/Mars_Express/Frosty_martian_valleys

[ekoplaneta]

Większy jest basen Utopia, choć mniej wyrazisty niż Hellas. A największy basen uderzeniowy Marsa to jego północna półkula......

[Orionid]

Basen Hellas uchodzi za największy impaktowy krater, którego pochodzenie jest pewne. Około 3,9 mld lat temu duża planetoida spowodowała jego powstanie.

https://pl.wikipedia.org/wiki/Hellas_Planitia

Hellas is the third or fourth largest impact crater and the largest visible impact crater known in the Solar System.
With a diameter of about 2,300 km (1,400 mi), it is the largest unambiguous impact structure on the planet, the obscured Utopia Planitia is slightly larger. Though it's distant second and third for both if the Borealis Basin proves to be an impact crater.

https://en.wikipedia.org/wiki/Hellas_Planitia

[Orionid]

Badania Mars Express pozwoliły powiązać CME z  gwałtownymi zjawiskami związanymi z pogodą kosmiczną w pobliżu Marsa.
Obłoki na wysokości jonosfery (250 km) stanowiły zagadkę.
W zarejestrowanych danych znaleziono dowody na to, że pokaźnych rozmiarów koronalny wyrzut masy (CME) ze Słońca uderzył bezpośrednio w marsjańską atmosferę  w miejscu i  czasie, gdzie obserwowano te chmury.

http://www.pulskosmosu.pl/2016/05/24/tajemnicze-obloki-na-marsie-a-pogoda-kosmiczna/
http://phys.org/news/2016-05-mystery-mars-plumes-space-weather.html

[Orionid]

Obszar Acheron Fossae doświadczył  zapewne przed 3,7-3,9 mld  intensywnych zjawisk geologicznych.

This scene, captured by ESA’s Mars Express on 4 May, focuses on the western part of Acheron Fossae, an isolated block of ancient terrain that covers an area about 800 km long and 280 km wide and stands up to 2 km higher than the surrounding plains.

Acheron Fossae is part of a network of fractures that radiates from the Tharsis ‘bulge’ some 1000 km to the south, home to the largest volcanoes on Mars. As the Tharsis region swelled with hot material rising from deep inside Mars as the volcanoes formed, it stretched and pulled apart the crust along lines of weakness over a wide area.

This process gave rise to the classic ‘horst and graben’ system – a series of depressions (graben) bounded by faults and uplifted blocks (horsts) either side of the graben.

http://m.esa.int/Our_Activities/Space_Science/Mars_Express/A_record_of_ancient_tectonic_stress_on_Mars

[Orionid]

Wpływ pola magnetycznego na górne warstwy atmosfery ma duże znaczenie  w komunikacji Mars - Ziemia.

Mars' ionosphere shaped by crustal magnetic fields
November 7, 2016

The Red Planet has numerous pockets of strong magnetism locked up within its crust, remnants from its earliest days. Modern-day Mars may be known for its relative lack of magnetism but young Mars was likely a different world; it was probably warmer and wetter, with a denser atmosphere and a hotter core. Scientists believe the young planet also had a sizeable magnetic field, driven by the circulating motion of molten material within its core (known as a planetary dynamo). (...)

http://phys.org/news/2016-11-mars-ionosphere-crustal-magnetic-fields.html