Sending “150 pound bags of water,” as Laurence Krauss calls them, on missions proves to be a bad idea. Humans going on space missions only make the already expensive mission exponentially more expensive. Humans are also very adapted to this earth and are susceptible to much harm in the outer world (Dunbar). This fact makes it difficult to keep humans safe while also keeping the cost of the mission down. Another reason the cost would go up is the fuel. If we send humans to outer space, we not only have to get them there, we also have to get them back (Krauss). Although sending humans to space is cool and groundbreaking, robots are a much more efficient way to get the same information. For humans to be able to go into space, we must protect
