How to "Investigate rock arches on the Mun" in Kerbal Space Program?
I'm doing historical missions, the "Investigate rock arches on the Mun" mission.
I've reached the Arch, taken samples, EVA, Crew reported, landed really near it (<100m), climbed it's top + crew report + Samples.. and still the contract is not satisfied.
What am I missing?
UPDATE
I think it's a bug. I've been there a second time, still nothing happens.
Best Answer
Have you visited all the arches on the Mun? The easter egg KSP wiki page says:
Three giant rock arches can be found at 12° 27? 2??N 39° 11? 45??E, 12° 28? 18??S 140° 57? 40??W, and 2° 27? 47??N 81° 31? 51??E.You have only explored one arch. If you find the others and explore them, you should complete the contract.
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Where are the Mun arches KSP?
Have you visited all the arches on the Mun? The easter egg KSP wiki page says: Three giant rock arches can be found at 12\xb0 27\u2032 2\u2033 N 39\xb0 11\u2032 45\u2033 E, 12\xb0 28\u2032 18\u2033 S 140\xb0 57\u2032 40\u2033 W, and 2\xb0 27\u2032 47\u2033 N 81\xb0 31\u2032 51\u2033 E.Is the Mun tidally locked KSP?
The Mun's orbit keeps it directly above Kerbin's equator. Because the Mun is tidally locked to Kerbin with a perfectly circular, non-inclined orbit, exactly 50% of the Mun's surface (excluding areas on the edge obscured by the Mun's mountains) is ever visible from Kerbin.Is Minmus tidally locked?
Minmus is no longer tidally locked to Kerbin. Minmus' mass reduced. Synchronous orbit is now possible. Previously, it would have required an altitude of 4 302.99 km, outside Minmus' sphere of influence.KSP: FULLY STOCK Hanging Mun Arch Base!
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Answer 2
Maybe you have to return the sample back to Kerbin?
Otherwise, I would check the contract again in the Mission Control building at KSC. The description of the contract there might be more specific than the UI tooltip.
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Images: Pixabay, Andrew LaBonne, Ray Bilcliff, RODNAE Productions

