Completar frases The first space dogs. Versión en línea students are going to read a text about the first dogs which traveled to the outer space. por Maria Alejandra Orjuela Canizales 1 space puppies spaceship famous Museum dogs space outer earth Space The Russian , Belka and Strelka , were the first dogs to spend time in and come back safely . They were sent into orbit in August 1960 on board the Russian , Sputnik 5 . After a full day in space , the dogs landed back on . With them on their day - long trip to were 42 mice , 1 rabbit and 2 rats . All the animals came back alive , but only the dogs became Russian stars . Strelka later gave birth to six puppies . One of the was given as a gift to Caroline Kennedy , the daughter of US President John F . Kennedy . Caroline named the dog Fluffy . After Belka and Strelka died , their bodies were stuffed and put on display in a Moscow . Their pictures were used on postage stamps , and their story became the very popular Russian cartoon , Belka and Strelka - Star Dogs .