Mars Express (MEX) - ESA orbiter

Yang Liwei Rocket · 2006-01-05 22:47:32

Here are the ESA web site pages as well, happy reading and wow hoooo...

Mars Express evidence for large aquifers on early Mars
[url=http://www.esa.int/SPECIALS/Results_from_Mars_Express_and_Huygens/SEM7ZTULWFE_0.html]Buried craters and underground ice -
Mars Express uncovers depths of Mars[/url]

great links

here is some more from Mars-Express
http://www.esa.int/SPECIALS/Mars_Expres … l#subhead5
A large elliptical impact crater is visible, measuring approximately 24.4 km long, 11.2 km wide and reaching a maximum depth of approximately 650 metres below the surrounding plains.

EuroLauncher · 2006-01-20 04:59:33

Juventae Chasma on Mars
http://www.universetoday.com/am/publish … ml?1912006

Martian glaciers: did they originate from the atmosphere?
http://www.esa.int/esaSC/SEMS3PMZCIE_index_0.html
20 January 2006
The spectacular features visible today on the surface of the Red Planet indicate the past existence of Martian glaciers, but where did the ice come from?
An international team of scientists have produced sophisticated climate simulations suggesting that geologically recent glaciers at low latitudes (that is near the present-day equator) may have formed through atmospheric precipitation of water-ice particles.

Palomar · 2006-02-21 07:56:05

New article

ESA's Mars Express spacecraft has seen more evidence that aurorae occur over the night side of Mars, especially over areas of the surface where variations in the magnetic properties of the crust have been detected.
Observations from the ASPERA instrument on board ESA's Mars Express spacecraft show structures (inverted-V features) of accelerated electrons and ions above the night side of Mars that are almost identical to those that occur above aurorae on Earth.

Mentions that up until recently it was thought this phenomenon was impossible on Mars...or very unlikely. Mentions MGS's discovery of "crustal magnetic abnormalities."

This discovery started speculation that auroras could also occur at Mars. In 2004, the SPICAM instrument on board Mars Express observed emissions of light during a magnetic anomalies investigation - emissions that could be due to precipitating energetic particles.
The ASPERA scientists have now found that the structures of accelerated particles are indeed associated with the "crustal magnetic anomalies" at Mars, but that strong acceleration mainly occurs in a region close to local midnight.
The precise emissions of light that occur remain to be studied since the composition of the upper atmosphere on the night side is not well known. On the basis of atmospheric models, the scientists speculate that the classical "green" emission line of oxygen might be present

"But, as we see Mars as always sunlit, the aurorae on the night side of Mars cannot be observed from Earth"

Yeah...bummer. :-\

--Cindy

REB · 2006-02-22 09:36:54

That will be a cool sight to behold for future humans on Mars.

From my past reading, if I understand it correctly, Mars has areas of magnetic fields across its surface- some stronger than others. I am guessing most of these are where iron asteroids pelted the surface. (I think the Moon has similar fields due to the same reason, but I could be wrong there).

So imaging being under one of these magnetic field domes and seeing a localized aurora display.

EuroLauncher · 2006-02-27 04:48:37

Ausonia Mensa remnant massif

http://www.esa.int/SPECIALS/Mars_Expres … CIE_0.html

These images, taken by the High Resolution Stereo Camera (HRSC) on board ESA’s Mars Express spacecraft, show the Ausonia Mensa massif on Mars.

Yang Liwei Rocket · 2006-03-04 09:17:20

Eastern scarp of Olympus Mons

3 March 2006

http://www.esa.int/SPECIALS/Mars_Expres … GJE_1.html

These images, taken by the High Resolution Stereo Camera (HRSC) on board ESA’s Mars Express spacecraft, show the eastern scarp of the Olympus Mons volcano on Mars.

EuroLauncher · 2006-03-29 06:04:13

more here
Ma'adim Vallis

ESA Mars Express: 'Hourglass'-shaped crater - new video and perspectives
http://www.marstoday.com/news/viewsr.html?pid=19991

EuroLauncher · 2006-04-13 01:46:05

Mars Wants You to Have a Nice Day
Wed, 12 Apr 2006 -
http://www.universetoday.com/am/publish … ml?1242006
This is a photograph of the unusually happy Galle Crater on Mars. ESA's Mars Express took a series of 5 images shaped like strips which were then assembled on computer to build up a single photograph. Galle Crater is 230 km (143 miles) across, and located on the eastern rim of the Argyre Planitia impact basin on Mars.

cIclops · 2006-05-24 13:24:15

New lava tube imagery released

Rxke · 2006-05-24 13:25:50

:shock:

Ohh! Aaah!

Prime real estate!

(Read too much KSR, I know....)

noosfractal · 2006-09-22 02:33:13

Has the MARSIS data been released/published/submitted for publication?

Mars_B4_Moon · 2006-09-22 09:21:01

The Mars Express probe has photographed the classic surface feature on the Red Planet's surface known as "The Face".
http://news.bbc.co.uk/1/hi/sci/tech/5369038.stm
The mountain, which looks just like a human head with eyes, mouth and nostrils, was first pictured by the US Viking 1 Orbiter in 1976.

Face on Mars Just a Lump Of Rock
http://www.npr.org/templates/story/stor … Id=6117746

Rxke · 2006-09-22 13:12:43

The mountain, which looks just like a human head with eyes, mouth and nostrils,

On the original pictures, yes. It still does when your name is Hoagland...

cIclops · 2006-12-14 04:10:21

Mars Express scientists find a different Mars underneath

MARSIS found evidence that these buried impact craters – from about 130 to 470 kilometres in diameter – are present under much of the northern lowlands. The findings appear in the 14 December issue of the journal Nature.

idiom · 2006-12-14 04:55:21

That complicates matters somewhat...

cIclops · 2007-02-28 05:43:53

Operations extended

27 February 2007
ESA's Mars Express and Venus Express missions, to explore our nearest neighbour planets Mars and Venus respectively, will continue to operate until early-May 2009. The decision was unanimously taken by ESA's Science Programme Committee last Friday.

RedStreak · 2007-03-15 16:32:56

Mars Water Find

The Mars Express has uncovered a huge find of water ice around the south pole of the red planet.

I was wondering when they'd release some of MARSIS' findings.

RedStreak · 2007-03-15 16:48:18

More intruige, from the ESA Mars Express page: Mars Express radar gauges water quantity around Mars’ south pole

One area with an especially bright reflection from the base of the deposits puzzles researchers. It resembles what a thin layer of liquid water might look like to the radar instrument...

If the South Pole, that's typically been considered nothing more than a patch of dry ice, has possible evidence of liquid water (coupled of course with a massive amount of water ice) imagine what findings are awaiting at the Martian North Pole that is mainly water ice!

cIclops · 2007-03-15 17:13:12

One area with an especially bright reflection from the base of the deposits puzzles researchers. It resembles what a thin layer of liquid water might look like to the radar instrument...

cutting the quote there is really misleading - the whole sentence reads:

One area with an especially bright reflection from the base of the deposits puzzles researchers. It resembles what a thin layer of liquid water might look like to the radar instrument, but the conditions are so cold that the presence of melted water is deemed highly unlikely.

SpaceNut · 2007-03-15 19:27:21

Vast stores of water ice found on Mars; Researches say melted water could cover whole of planet

the planet has enough water ice at its south pole to blanket the entire planet in more than 30 feet of water if everything thawed out.
With a radar technique, astronomers have penetrated for the first time about 2.5 miles (nearly four kilometers) beneath the south pole’s frozen surface. The data showed that nearly pure water ice lies beneath.

070315_marsice_vmed_9a.widec.jpg

This map shows the thickness of the south polar layered deposits of Mars. The radar data indicate that the deposit, larger than Texas in area, is more than 2.3 miles (3.7 kilometers) thick in places, and that the material consists of nearly pure water ice with only a small component of dust.

RedStreak · 2007-03-15 20:01:30

cutting the quote there is really misleading - the whole sentence reads:
One area with an especially bright reflection from the base of the deposits puzzles researchers. It resembles what a thin layer of liquid water might look like to the radar instrument, but the conditions are so cold that the presence of melted water is deemed highly unlikely.

Before the Voyagers it would have been highly unlikely for Europa to have water as well.

I won't deny that I did cut the quote for a little drama.

cIclops · 2007-03-16 06:33:31

I won't deny that I did cut the quote for a little drama.

Isn't the discovery of 1.6 million cubic kilometers of water ice dramatic enough?

RedStreak · 2007-03-16 10:32:41

lol - good point.

Is anyone else wondering what the Martian North Pole might be like in comparison?

dicktice · 2007-03-16 17:57:06

More of the same, presumably, if the penetration radar probe continues to work as well as it has for the South Pole. The discovery of a thick ice cap ibrings with it the possibility of using hot-tipped deep penetrators on Mars, comprising relatively simple and lightweight combined suspension/instrumentation cable drums, rather than weak imitations of Earthly drilling rigs. The hot-tip penetrators could be developed and then tested most conveniently on the Greenland icecap. One wonders if they might not already be under development ... anyone know?

SpaceNut · 2007-03-16 18:49:38

What I would like to know is if the cap is ice all the way to the mantle or is there any liquid water still there.

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#201 2006-01-05 22:47:32

Re: Mars Express (MEX) - ESA orbiter

#202 2006-01-20 04:59:33

Re: Mars Express (MEX) - ESA orbiter

#203 2006-02-21 07:56:05

Re: Mars Express (MEX) - ESA orbiter

#204 2006-02-22 09:36:54

Re: Mars Express (MEX) - ESA orbiter

#205 2006-02-27 04:48:37

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#206 2006-03-04 09:17:20

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#207 2006-03-29 06:04:13

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#208 2006-04-13 01:46:05

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#209 2006-05-24 13:24:15

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#210 2006-05-24 13:25:50

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#211 2006-09-22 02:33:13

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#212 2006-09-22 09:21:01

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#213 2006-09-22 13:12:43

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#214 2006-12-14 04:10:21

Re: Mars Express (MEX) - ESA orbiter

#215 2006-12-14 04:55:21

Re: Mars Express (MEX) - ESA orbiter

#216 2007-02-28 05:43:53

Re: Mars Express (MEX) - ESA orbiter

#217 2007-03-15 16:32:56

Re: Mars Express (MEX) - ESA orbiter

#218 2007-03-15 16:48:18

Re: Mars Express (MEX) - ESA orbiter

#219 2007-03-15 17:13:12

Re: Mars Express (MEX) - ESA orbiter

#220 2007-03-15 19:27:21

Re: Mars Express (MEX) - ESA orbiter

#221 2007-03-15 20:01:30

Re: Mars Express (MEX) - ESA orbiter

#222 2007-03-16 06:33:31

Re: Mars Express (MEX) - ESA orbiter

#223 2007-03-16 10:32:41

Re: Mars Express (MEX) - ESA orbiter

#224 2007-03-16 17:57:06

Re: Mars Express (MEX) - ESA orbiter

#225 2007-03-16 18:49:38

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