Last year, President Trump promised the US would "establish a long-term presence" in space (Picture: US Department of Defense).
The US Space Force has begun an online campaign to find a new generation of personnel looking to be part of America's military service for space.
Through a series of videos and interviews, the US military is looking to find military astronauts.
Dr Joel Mozer, Air Force Space Command, says: "We're about to launch off into the next space age."
He said: "We have a long term plan to think about - how we're going to expand our operations in low earth orbit near earth, as well as moving out further to the Moon and even Mars."
He added that there are new technologies including rocket propulsion and satellites beginning to be developed.
Les Johnson, a leading NASA scientist, said:
"It's pretty exciting, it's a new technology for space propulsion and we'll be flying next year - taking a small spacecraft to an asteroid."
"I really believe that we have an opportunity window of probably another 15-25 years, while the generation that saw Apollo's youth and are now in leadership positions can really make a difference and make things happen," he added.
Dr Mozer said there are many questions yet to be answered as they continue to look and investigate how they can operate in space.
Watch: is the British military ready to fight in space?