Open House: Mars

Rover prototypes were on display during the Open House 2008 for missions that will one day be on Mars. credit: NASA

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Word of the Day

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Today in History

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Quiz Me

Which radioactive element keeps the Earth's core hot? or View Results

lament
Definition:	A song or hymn of mourning composed or performed as a memorial to a dead person.
Synonyms:	coronach, dirge, requiem, threnody

	Uranium
	Plutonium
	Titanium
	Magnesium


Uranium (100.00%)

Plutonium (0.00%)

Titanium (0.00%)

Magnesium (0.00%)


Correct answer

Incorrect answer

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Open House: Mars

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