<|im_start|>user
Who was the first astronaut?<|im_end|>
<|im_start|>assistant
Yuri Gagarin, a Russian pilot, was the first person to travel into space. On April 12, 1961, he completed an orbit around the Earth in the Vostok 1 capsule. Gagarin famously said, "Our Earth is blue," while in Earth orbit.<|im_end|>
