The Pak Banker

Return to the Moon by 2024?

- Kent Wang

While Apollo's crew placed the first steps on the Moon, Artemis opens the door for humanity to sustainabl­y work and live on another world for the first time. Using the lunar surface as a proving ground for living on Mars, this next chapter in exploratio­n will forever establish our presence in the stars. NASA is returning to the Moon - to stay - but how will astronauts go to the Moon again?

First and foremost, let's answer your questions: How astronauts go back to the moon? What kind of spacecraft will bring astronauts to the Moon in 2024? NASA's biggest challenge in attempting a return to the Moon might be acquiring a large lander that, after launching the heavy-lift rocket, could carry astronauts all the way to the lunar surface.

It's been 48 years since NASA last launched an exploratio­n-class rocket to carry humans beyond low-Earth orbit. That is slated to change, when NASA will fire the new Space Launch System with a new lander, Orion. This advanced Orion module will provide the foundation for human exploratio­n beyond Earth's orbit and to carry out deep-space missions. The vehicle will carry as many as four astronauts for up to 21 days. After being launched on NASA's Space Launch System, Orion will take a crew to the Gateway in lunar orbit.

To return to the Moon by 2024, NASA will rely upon a lunar-orbit docking station known as the Lunar Gateway. The Lunar Gateway is an in-developmen­t space station in lunar orbit intended to serve as a solar-powered communicat­ions hub, science laboratory, short-term habitation module, and holding area for rovers and other robots. Using the Gateway to stage astronaut descents, astronauts will use lunar landers to reach the moon's surface, setting the stage for future, fully reusable lunar landing vehicles. The focus now is using the Orion spacecraft to shuttle humans back and forth from the Earth all the way out to the Moon.

NASA dropped requiremen­ts for the lunar lander on the 2024 mission to dock with the Gateway. Instead, the Orion spacecraft could dock directly with the lander in lunar orbit before starting the descent. Once in lunar orbit, all four astronauts will use the lunar landing craft to travel to the moon's surface, while the Orion spacecraft stays in lunar orbit. Once the astronauts' lunar mission is complete, they will return to the orbiting Orion vehicle using a lunar ascent module.

The Lunar Gateway is an in-developmen­t space station in lunar orbit intended to serve as a solar-powered communicat­ions hub, science laboratory, short-term habitation module, and holding area for rovers and other robots.

NASA's Orion spacecraft builds upon more than 50 years of spacefligh­t research and developmen­t. It is uniquely designed to carry astronaut crews to deep space, provide emergency abort capability, sustain crew during space travel, and provide safe reentry at the high-Earth return velocities typically needed to come home from missions beyond low Earth orbit.

Orion is capable of supporting a crew of four astronauts for periods of up to 21 days. It is designed to provide communicat­ions, navigation, power, and propulsion to carry people and cargo in the harsh environmen­t of deep space and, with a planned mission kit, dock with the Gateway. Through modificati­on and with the support of other new deep space elements, most of the Orion systems could be capable of operations in deep space for periods of time up to 1,000 days. The Orion will also be able to provide key initial life-support and abort capabiliti­es to and from the Gateway. Additional­ly, the Orion systems are designed to operate in a contingenc­y mode to augment life support systems in other space transport systems.

NASA stands on the verge of commercial­izing low-Earth orbit. These experience­s and partnershi­ps will [enable NASA to go back to the Moon in 2024. NASA's backbone for deep space exploratio­n is the biggest rocket ever built, the Space Launch System, the Orion spacecraft and the Gateway lunar command module. With its partners, NASA will use the

Gateway lunar command module orbiting the Moon as a staging point for missions that allow astronauts to explore more parts of the lunar surface than ever before.

NASA's Artemis program has a bold charter to land astronauts, including the first woman and the next man, on the Moon by 2024. To achieve this feat, the Orion spacecraft has been designed, developed and tested to gear up for humanity's next giant leap into deep space. Orion promises to be yet another phenomenal milestone for NASA and for us as a whole.

The Gateway and Orion program was also addressed as one of the main internatio­nal collaborat­ion programs. Orion is the shuttle that bring astronauts to the Lunar Orbital Platform Gateway orbiting the moon and intended to serve as a solar-powered communicat­ions hub, science laboratory, short-term habitation module, and holding area for rovers and other robots.

Once on the Gateway, astronauts will find docked the Lunar lander that will take them to the Moon surface; from there the ascent module of the lander will be used to fly back to the Gateway. The Orion spacecraft will be used for the trip back to Earth; just before re-entering the atmosphere Orion will separate into the crew module and the service module, the former safely ferrying astronauts home, the latter burning in the atmosphere.

Orion is the critical vehicle of NASA's architectu­re for returning humans to the surface of the Moon. "We are really excited about this mission, and Orion is on track to support the administra­tion's challenge," Mark Kirasich, NASA Orion program manager, said of the 2024 lunar landing goal. With a recent successful test of the spacecraft's abort system now complete, Mark is optimistic the spacecraft will be ready to send humans to the moon in 2024 even as developmen­t schedules continue to slip.

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