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To: SuziQ

“Are we just trying to ruin the Martian atmosphere like we’ve done with the Earth? /sarc”

Mars’ atmosphere is 96% CO2(very cold).....2% more and Mars could warm up like Venus(very hot), which is 98% CO2.

The SUV should be the tipping point.


66 posted on 08/06/2012 2:01:14 AM PDT by Puckster
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To: Puckster
Speaking of heat, some data (WIKI) on the power source and heating system: Power source: Curiosity is powered by a radioisotope thermoelectric generator (RTG), like the successful Viking 1 and Viking 2 Mars landers in 1976.[37][38]

Radioisotope power systems (RPSs) are generators that produce electricity from the natural decay of plutonium-238, which is a non-fissile isotope of plutonium. Heat given off by the natural decay of this isotope is converted into electricity, providing constant power during all seasons and through the day and night, and waste heat can be used via pipes to warm systems, freeing electrical power for the operation of the vehicle and instruments.[37][38]

Curiosity's RTG is fueled by 4.8 kg (11 lb) of plutonium-238 dioxide supplied by the U.S. Department of Energy,[39] packed in 32 pellets each about the size of a marshmallow.[13]

Curiosity's power generator ....is designed to produce 125 watts of electrical power from about 2000 watts of thermal power at the start of the mission.[37][38] The MMRTG produces less power over time as its plutonium fuel decays: at its minimum lifetime of 14 years, electrical power output is down to 100 watts.[41][42]

The MSL will generate 2.5 kilowatt hours per day, much more than the Mars Exploration Rovers, which can generate about 0.6 kilowatt hours per day.

Heat rejection system: The temperatures can vary from −127 °C to +30 °C (−197 °F to +86 °F). Therefore, the heat rejection system (HRS) uses fluid pumped through 60 m (200 ft) of tubing in the MSL body so that sensitive components are kept at optimal temperatures.[43]

Other methods of heating the internal components include using radiated heat generated from the components in the craft itself, as well as excess heat from the MMRTG unit. The HRS also has the ability to cool components if necessary.[43]

67 posted on 08/06/2012 2:10:32 AM PDT by 21twelve
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To: Puckster

The Venusian atmosphere is acidic, not mostly CO2?


73 posted on 08/06/2012 3:14:25 AM PDT by Southack (Media Bias means that Castro won't be punished for Cuban war crimes against Black Angolans in Africa)
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