By Maya Menashe, Senior Science and Technology Editor
More than fifty years after the last successful time astronauts travelled on Apollo 17, humanity has decided to return to the moon once again. On April 1, Artemis II carried four astronauts beyond low Earth orbit for ten days around the moon, making this the first crewed lunar mission in half a century. This mission represents the epitome of technological advancement and the new chapter in space exploration that aims for a sustained lunar presence and eventual missions to Mars.
Artemis II was the first crewed mission in NASA’s Artemis program. Astronauts Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen traveled record-breaking distances exceeding 250,000 miles away from Earth to explore the Moon for economic benefits, scientific discovery and building humanity’s foundation on Mars. The mission demonstrated that modern astronauts are now capable of traveling farther from Earth than any humans since the Apollo missions, while also relying entirely on new systems and technology designed for record-breaking deep space exploration. The first Artemis mission was an uncrewed test flight of the Space Launch System (SLS) rocket and the Orion spacecraft in November 2022, using a new exploration ground system to launch the rocket to plan for Artemis II. This earlier mission was essential to test the spacecraft’s safety, navigation and communication systems before placing humans in it.
NASA’s SLS is the only rocket that is optimized for deep-space travel and super-heavy lift to carry both astronauts and cargo to the moon in one single launch. It is currently capable of sending 59,500 pounds into space, but will eventually evolve its technology to send more than 83,000 pounds, allowing us to travel deeper into space and ultimately to Mars. Its enormous power is essential for missions to the Moon and Mars since they require much greater amounts of fuel and equipment than missions remaining in low Earth orbit. Meanwhile, the Orion spacecraft has been designed specifically for deep-space missions. During Artemis II, Orion’s life-support systems, navigation, communication and heat protection were all tested in real-time. These systems performed successfully, surviving the most dangerous phase of flying to space: extreme heat of atmospheric reentry. Temperatures during reentry can reach approximately 5,000 degrees Fahrenheit, making Orion’s heat shield a critical achievement.
Furthermore, although the Artemis Accords outline a common set of principles to enhance civil exploration and use of outer space and are currently signed by 61 nations, this specific mission had contributions from the European Space Agency, the Canadian Space Agency (CSA), the Japan Aerospace Exploration Agency and the Mohammed bin Rashid Space Centre of the United Arab Emirates, as well as the participation of several companies. This collaboration is important in driving further technological advancements, not only in outer space but also on Earth itself. International cooperation is beneficial for everyone, as it allows nations to share scientific discoveries and expertise, therefore allowing humanity to reach new heights.
Although Artemis II did not land on the Moon, this Mission has important scientific and human significance. Important data was collected on how spacecraft systems and the human body respond to deep space conditions, including exposure to radiation and the time beyond Earth’s protective magnetosphere.
The mission of Artemis II shows that humanity is no longer confined to Earth’s orbit and is capable of traveling deep into space. With new technology, the missions to outer space will become improved and impactful. Artemis II represents the beginning of humanity’s next era of discovery and innovation beyond Earth.
Photo Credit: NASA