Methane - Revision history

RichardWSmith: /* Discovery in Atmosphere */ Added link.

2024-11-29T05:12:09Z

Discovery in Atmosphere: Added link.

RichardWSmith: /* Discovery in Atmosphere */ Evidence for methane is not as strong as I thought.

2024-11-29T05:10:41Z

Discovery in Atmosphere: Evidence for methane is not as strong as I thought.

RichardWSmith at 19:13, 28 October 2024

2024-10-28T19:13:40Z

RichardWSmith at 19:12, 28 October 2024

2024-10-28T19:12:56Z

RichardWSmith: Added link

2024-10-28T19:10:36Z

Added link

Sdubois at 10:23, 29 February 2020

2020-02-29T10:23:58Z

Sdubois at 10:23, 29 February 2020

2020-02-29T10:23:11Z

Michel Lamontagne: /* Uses for methane */

2019-04-27T22:12:51Z

Uses for methane

Jburk at 23:58, 17 December 2018

2018-12-17T23:58:51Z

Rfc: /* Uses for methane */ link+

2012-11-24T14:20:20Z

Uses for methane: link+

← Older revision		Revision as of 05:12, 29 November 2024
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	Further, early reports put methane 10 times higher than later reports. This is hard to explain, since methane should have a half life of ~300 years in Martian conditions. For these reasons, detection of methane should be regarded as preliminary, and we may wish to wait for stronger data.		Further, early reports put methane 10 times higher than later reports. This is hard to explain, since methane should have a half life of ~300 years in Martian conditions. For these reasons, detection of methane should be regarded as preliminary, and we may wish to wait for stronger data.
		+
		+	See [[Photochemistry]] for a discussion on how methane breaks down in the Martian [[Atmosphere]].

	In 2004, the [[Mars Express]] mission detected methane in the Martian atmosphere at a level of approx. 10 parts per billion. This was later confirmed by Earth-based spectroscopy. Methane is quickly decomposed in the martian atmosphere, so some source, either geologic or biological, is replenishing the gas.		In 2004, the [[Mars Express]] mission detected methane in the Martian atmosphere at a level of approx. 10 parts per billion. This was later confirmed by Earth-based spectroscopy. Methane is quickly decomposed in the martian atmosphere, so some source, either geologic or biological, is replenishing the gas.

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 ==Discovery in Atmosphere==
 In 2004, the [[Mars Express]] mission detected methane in the Martian atmosphere at a level of approx. 10 parts per billion.  This was later confirmed by Earth-based spectroscopy. Methane is quickly decomposed in the martian atmosphere, so some source, either geologic or biological, is replenishing the gas.
 Methane plumes have been detected over areas thought to have had water in the past.
 <ref>http://www.nasa.gov/mission_pages/mars/news/marsmethane.html</ref>
 ==Synthesis of methane==

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 Methane is of particular interest for missions to Mars, as it may be possible to produce it [[in-situ resource utilization|in situ]] using locally-available raw materials.  This would make it an ideal fuel for [[rover|rovers]] and rocket engines.
-This [[The Curious Case for Methane on Mars: Methane and Active Organics Discovered on Mars| article]] discusses methane discoveries on Mars.
+This [[The Curious Case for Methane on Mars: Methane and Active Organics Discovered on Mars| article]] discusses organic (?) methane discoveries on Mars.
 ==Discovery in Atmosphere==

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 Methane is of particular interest for missions to Mars, as it may be possible to produce it [[in-situ resource utilization|in situ]] using locally-available raw materials.  This would make it an ideal fuel for [[rover|rovers]] and rocket engines.
-This [[Editing The Curious Case for Methane on Mars: Methane and Active Organics Discovered on Mars| article]] discusses methane discoveries on Mars.
+This [[The Curious Case for Methane on Mars: Methane and Active Organics Discovered on Mars| article]] discusses methane discoveries on Mars.
 ==Discovery in Atmosphere==

← Older revision		Revision as of 19:10, 28 October 2024
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	Methane is of particular interest for missions to Mars, as it may be possible to produce it [[in-situ resource utilization\|in situ]] using locally-available raw materials. This would make it an ideal fuel for [[rover\|rovers]] and rocket engines.		Methane is of particular interest for missions to Mars, as it may be possible to produce it [[in-situ resource utilization\|in situ]] using locally-available raw materials. This would make it an ideal fuel for [[rover\|rovers]] and rocket engines.
		+
		+	This [[Editing The Curious Case for Methane on Mars: Methane and Active Organics Discovered on Mars\| article]] discusses methane discoveries on Mars.

	==Discovery in Atmosphere==		==Discovery in Atmosphere==

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 ==See also==
-*[[The Curious Case for Methane on Mars]]
+*[[The Curious Case for Methane on Mars: Methane and Active Organics Discovered on Mars ]]
 ==External Links==

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 ==References==
 <references />
 ==External Links==

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 The forward reaction takes place in the presence of high temperatures and pressures, in the presence of a [[nickel]] [[catalyst]].  All of the raw materials should be available on the surface of Mars:
-* The [[atmosphere]] contains a high proportion of [[carbon dioxide]].
+*The [[atmosphere]] contains a high proportion of [[carbon dioxide]].
-* [[Hydrogen]] could be obtained by [[electrolysis]] of indigenous [[water]] (although some schemes call for the hydrogen to be imported).
+*[[Hydrogen]] could be obtained by [[electrolysis]] of indigenous [[water]] (although some schemes call for the hydrogen to be imported).
 This process could also be used during a trip to or from Mars to scrub CO<sub>2</sub> from a spacecraft atmosphere.
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 ==Uses for methane==
-Methane works well as a rocket fuel, and a number of LOX/methane fueled rockets are under development, including the [[XCOR|XCOR XR5M15]] and [[TR408 Rocket|Northrop Grumman TR408]].
+Methane works well as a rocket fuel, and a number of LOX/methane fueled rockets are under development, including the [[XCOR|XCOR XR5M15]],  [[TR408 Rocket|Northrop Grumman TR408]], the SpaceX [[Starship]] and Booster as well as the Blue Origin rockets.
 Methane [[fuel cells]] have recently been demonstrated, and these would work well for powering rovers, semi-portable equipment or as backup generators. It can play an important part in an [[energy storage‎]] infrastructure.
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 ==References==
-<references/>
+<references />
 ==External Links==
 *[http://en.wikipedia.org/wiki/Methane Wikipedia article on Methane]
 *[http://en.wikipedia.org/wiki/Sabatier_reaction Wikipedia article on the Sabatier reaction]

← Older revision		Revision as of 23:58, 17 December 2018
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	[[Category:Biospherics]]		[[Category:Biospherics]]
−	~~[[Category:Chemistry]]~~
−	~~[[Category:Hydrocarbons]]~~

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 :CH<sub>4</sub> + heat &nbsp; → &nbsp; 2H<sub>2</sub> + C
-The graphite so formed could be used for ablative surfaces, reinforcement of [[polymer]] materials, furnace linings or control elements in [[nuclear reactor]]s.
+The graphite so formed could be used for ablative surfaces, reinforcement of [[Hydrocarbons|polymer]] materials, furnace linings or control elements in [[nuclear reactor]]s.
 ==References==