The head of Russia's space agency Sunday said the US has rebuffed an offer from Moscow to jointly explore the moon, while announcing a separate contract with NASA for nearly one billion dollars for the International Space Station.
Roskosmos chief Anatoly Perminov was quoted as saying by the Interfax news agency that Russia had proposed pooling resources to explore the moon.
"We were ready to cooperate but for unknown reasons, the United States have said they will undertake this programme themselves," he said.
There are a couple reasons that come to mind right now. The first is Mr Putin's friendliness to the US and West (and his likely successors'). The second is past performance on the ISS. Third is, frankly, the US does things best without too many chiefs when we have international cooperation: otherwise, we don't play well with others.