The political rift between the US and Russia over Crimea has spilled into space – sort of. Last week, a leaked memo from NASA revealed that the agency was suspending engagements with Russia, in the wake of Russia's annexation of Crimea. The most important Russian-US space collaboration – the International Space Station – is not included in the boycott. We look at what the move means for space activities.This is all very unfortunate, and unessessary. To read more, click here.