What exactly is prohibiting human missions to mars now? What is the biggest obstacle in the way of a sooner trip to mars?
This is a great question to ask right now. Well, we have the technology to send a mission with humans to Mars, but right now we don’t have the funding to test these technologies or to actually send a manned mission to Mars. NASA gets a very small part of the government money every year, not nearly as much as it would need to create this type of mission. If there were a strong need or demand to go, we could start a mission tomorrow. However, unlike the drive to get to the Moon in the 1960s, there is little political drive to get to Mars. Scientific curiosity is the only driving force at the moment, and that is not enough to influence the government to put in the money required to get to Mars anytime soon.