Shoemaker, who himself could have become the first geologist-astronaut to join the Apollo moon flight, however, could not turn his moon dream into a reality as he was diagnosed with Addison's disease.
"In a situation like this we can't supply the United States with our world's best rocket engines. Let them fly on something else, their broomsticks, I don't know what", said ROSCOSMOS chief Dmitry Rogozin.
On February 24, hours after Russia started a full-scale military operation in Ukraine, Biden had addressed a strongly-worded presser, asserting that the sanctions the USA brings will adversely affect Russia's technological advancements and will affect their space program too.