When Russia had lost contact with a space vessel they had sent up with geckoes for the sole purpose of seeing how they would mate in space, John Oliver and Last Week Tonight made a rally cry to go get those geckoes.

Joy was had when they reestablished contact, but, alas, when Russia was looking in the vessel upon landing, they found that the geckoes had died.

So, of course, Oliver had a very fitting tribute to the space sex geckoes on Last Week Tonight complete with duet with A Great Big World.