RT @Cmdr_Hadfield: I just learned that a Canadian invented space travel: Professor William Leitch in 1861. Cool! acuriousguy.blogspot.ca/2015/10/rocket… http://t.co/OFQebTNFtc
RT @Cmdr_Hadfield: I just learned that a Canadian invented space travel: Professor William Leitch in 1861. Cool! acuriousguy.blogspot.ca/2015/10/rocket… http://t.co/OFQebTNFtc