There are rumors that the future of NASA's Space Launch System could be under threat.
The first of NASA's enormous Space Launch System (SLS) rockets stands as tall as the Statue of Liberty.
New footage has been released showing the Space Launch System engine reaching 113 percent thrust level.
The US space agency has decided against placing astronauts aboard its new rocket on its first launch.
NASA is considering whether to send a crew on its first integrated Orion, SLS flight around the Moon.
NASA has been testing out a powerful new rocket engine that will one day help put humans on Mars.
The new Space Launch System will enable ambitious future missions including a manned trip to Mars.
The Space Launch System (SLS) is set to enable new missions to the Red Planet and beyond.