NASA's Artemis II Mission Set to Open New Chapter in Lunar Exploration

Kathmandu. NASA's Artemis-2 mission, which is preparing to send humans back to the Moon after nearly five decades, signals a new chapter in space exploration. Seen as the first crewed lunar flight since 1972, this mission will lay a crucial foundation for future lunar expeditions, even without a direct landing.

In this mission, which echoes the Apollo program, four astronauts will depart for the Moon. They will not land on the lunar surface but will travel thousands of miles away before returning. This 'flyby' flight, lasting less than 10 days, is planned to return directly to Earth without orbiting the Moon.

The astronauts participating in this mission, Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen, are considered special in terms of diversity and international representation. Koch has already set the record for the longest single spaceflight by a female astronaut (328 days) and participated in the first all-female spacewalk.

Glover is one of the first Black astronauts to live on the International Space Station, while Canada's Hansen is embarking on his first space journey. Wiseman is leading the team as an experienced commander.

The Space Launch System (SLS) rocket used for the mission, while shorter than the Apollo-era Saturn-V, is considered more powerful in terms of launch thrust. At its top will be the Orion capsule, which will carry the astronauts. However, some technical challenges have emerged before the launch. Issues related to hydrogen leaks and helium flow have affected tests and pushed back the launch schedule.

After the flight, the astronauts will orbit in Earth's high orbit for the first 25 hours. Then, they will perform docking exercises necessary for future lunar missions. If all procedures are successful, the Orion's main engine will send the craft about 393,000 kilometers toward the Moon. Using a 'free-return trajectory,' this flight will save fuel by utilizing the gravitational pull of the Moon and Earth.

On the sixth day of the flight, the craft will reach its farthest point from Earth, which will be beyond the record of Apollo-13. Reaching about 8,000 kilometers from the Moon, the astronauts will observe the far side of the Moon from up close.

This region will be a rare opportunity for human eyes to see directly. The team is preparing to take extensive photos during this process, for which state-of-the-art cameras and smartphones will also be carried.

NASA astronomer Kelsey Young has described the Moon as a 'shared object that connects the world,' expressing belief that this mission will bring people closer together. In particular, direct observation of the far side of the Moon is expected to add a new dimension to scientific research.

The mission will end with a splashdown in the Pacific Ocean, similar to the Apollo program. The heat shield of the Orion capsule will be the most critical aspect during re-entry into Earth's atmosphere, which faced a rigorous test in the 2022 test flight. This time, there is a plan to shorten the landing process to reduce thermal risk.

Overall, the Artemis-2 mission is seen as an initial but decisive step in paving the way for human presence on the Moon again, which will open doors for future lunar landings and long-term space missions.