The Artemis missions are set to launch a new generation of astronauts on a journey back to the Moon - an event that stirs excitement and wonder. It has been over 53 years since humanity last set foot on lunar soil, but NASA is gearing up for a return with its Artemis program.
After more than nine years of meticulous planning and overcoming numerous challenges, the Artemis II mission could see its crew make a lunar flyby as soon as March. While this mission won’t involve landing on the Moon, it represents significant progress in our ambitions for space exploration and technological advancement.
Artemis II will be historic as it will be the first crewed test flight designed to assess NASA’s human deep-space capabilities. This includes the powerful Space Launch System (SLS) rocket and the Orion spacecraft, which aim to propel astronauts deeper into space than ever before, setting the stage for subsequent lunar missions.
The crew aboard Orion comprises some of the most skilled pilots and scientists globally, notably featuring the first Canadian astronaut selected for a lunar mission.
Mission Commander Reid Wiseman is a veteran NASA astronaut and retired U.S. Navy captain who previously spent 165 days on the International Space Station (ISS) during Expedition 41 in 2014. Pilot Victor J. Glover Jr. recently flew as the pilot for Crew-1 on SpaceX’s Dragon spacecraft, marking its inaugural crewed mission to the ISS. Mission specialist Christina Koch holds the record for the longest cumulative time spent in space among the crew, having completed a single spaceflight lasting 328 days and participating in the first all-female spacewalk.
In contrast, Canadian astronaut Jeremy Hansen will embark on his first journey to space with Artemis II. A former fighter pilot, Hansen was chosen by the Canadian Space Agency and has undergone extensive astronaut training. He has also participated in the European Space Agency’s CAVES program and served as a crew member of NEEMO 19, where he lived underwater for a week in the Aquarius habitat, making him the only aquanaut on that mission.
As we approach nearly 54 years since our last lunar visit, the reasons for returning to the Moon echo the motivations that fueled the original Apollo missions during the Cold War. Astrophysicist Neil deGrasse Tyson has pointed out that the current advancements made by countries like China in space exploration have sparked what many perceive as a renewed space race, reminiscent of those earlier times.
Tyson emphasizes that even during the 1960s, while the U.S. achieved the milestone of landing on the Moon first, it did so by surpassing several important milestones that had already been accomplished by the Soviet Union. His perspective suggests that the U.S. might once again be reacting to external pressures rather than proactively leading in space exploration.
At the heart of the Artemis missions is the SLS rocket, which is poised to become NASA’s primary vehicle for launching these ambitious endeavors. This rocket is engineered to outclass the Saturn V, historically recognized as the most robust rocket ever constructed for human flight.
The design of SLS incorporates elements from both the Apollo-era Saturn V and the Space Shuttle program. It is equipped with two solid rocket boosters that together generate an astonishing seven million pounds of thrust in the initial moments of ascent. Once their fuel is exhausted, these boosters detach and return to Earth.
Ensuring safety during the Artemis missions is of utmost importance. Following the tragic Challenger and Columbia disasters during the Space Shuttle era, NASA developed a launch abort system that is mounted atop the Orion spacecraft. This crucial system is designed to swiftly separate the crew capsule from the rocket during ascent, ensuring the safe return of astronauts if needed. It is jettisoned three minutes and 20 seconds into the flight after it is no longer required.
A standout feature of the SLS is its orange 'core stage,' which utilizes the same efficient engines as the Space Shuttle and relies on liquid hydrogen and oxygen as fuel. This eco-friendly process produces only water as a byproduct. Approximately eight minutes after liftoff, the core stage completes its fuel and separates, allowing the Orion spacecraft to continue its mission.
The upper stage of Orion will carry the crew into low Earth orbit and generate the necessary thrust for the translunar injection, officially setting Artemis II on its course to the Moon. After a four-day journey, the crew will execute a burn to enter lunar orbit, allowing Orion to enter an elliptical orbit around the Moon before using its gravitational pull to slingshot back toward Earth.
Following about 10 days in space, the Artemis II crew will splash down in the Pacific Ocean, successfully completing the objectives of this crewed test flight. Subsequently, NASA will shift its focus toward Artemis III, projected to launch in 2028, aiming to return humans to the lunar surface. Artemis IV will then concentrate on establishing sustainable infrastructure on the Moon.
After enduring years filled with delays and obstacles, NASA is finally on the verge of returning to the Moon. The Artemis II mission aims to send humans farther into space than any expedition since Apollo 17, potentially laying the foundation for the future of space exploration. The initial launch window is set from February 8 to 13, followed by additional opportunities from March 6 to 11 and from April 1 to 6 and 30. While the specific launch times may vary, NASA is targeting an evening liftoff.
On February 3, after encountering a liquid hydrogen leak, NASA announced a formal delay of the launch date until March. When Artemis II finally takes to the skies, the mission will be broadcasted live across NASA’s digital platforms and various partner streaming services, including YouTube, Facebook, and Netflix.
