The first humans to see the lunar surface up close since 1972
Por primera vez en más de medio siglo, cuatro astronautas se preparan para orbitar la Luna a bordo de la nave Orion en abril de 2026, en una misión que no busca aterrizar, sino escuchar: verificar que los sistemas que sostienen la vida humana en el espacio profundo realmente funcionan. La misión Artemis II, con tripulantes de la NASA y la Agencia Espacial Canadiense, es menos un destino que un umbral, el momento en que la exploración espacial deja de ser memoria y vuelve a ser presente. En el horizonte aguardan Marte y todo lo que la humanidad aún no sabe sobre sí misma más allá de la Tierra.
- Después de 54 años de silencio tripulado, la humanidad vuelve a enviar personas hacia la Luna, y la presión sobre cada sistema de la nave Orion es inmensa.
- La misión no aterriza, pero eso no la hace menor: probar que los sistemas de soporte vital funcionan en el espacio profundo es la condición sine qua non para todo lo que viene después.
- Los cuatro astronautas —Wiseman, Glover, Koch y Hansen— no solo vuelan; son también sujetos de estudio, sus cuerpos y mentes monitoreados para entender cómo el espacio transforma a los seres humanos.
- La nave orbitará la Tierra dos veces para ganar velocidad y verificar sistemas antes de emprender los cuatro días de viaje hacia el lado oculto de la Luna, a más de 7.400 kilómetros más allá de su superficie.
- Si Artemis II tiene éxito, Artemis III aterrizará, y después de eso, el camino apunta a Marte: esta misión es el primer eslabón de una cadena que podría redefinir la presencia humana en el cosmos.
Este abril, cuatro astronautas subirán a bordo de la nave Orion en Florida y pasarán diez días orbitando la Luna. Reid Wiseman, Victor Glover y Christina Koch, de la NASA, junto a Jeremy Hansen, de la Agencia Espacial Canadiense, protagonizarán el primer vuelo lunar tripulado desde 1972. No van a aterrizar. Van a escuchar: a verificar que los sistemas que mantienen vivos a los seres humanos en el espacio profundo realmente funcionan.
La misión Artemis II comienza en el Centro Espacial Kennedy, donde el cohete SLS —uno de los más potentes jamás construidos— lanzará a Orion hacia la órbita terrestre. La nave dará dos vueltas alrededor de la Tierra antes de encender sus motores y emprender un viaje de cuatro días hacia el lado oculto de la Luna. En su punto más lejano, los astronautas estarán a más de 7.400 kilómetros más allá de la cara oculta lunar, con la Tierra visible como una pequeña esfera azul a más de 400.000 kilómetros de distancia.
Pero la misión no es solo una travesía. Los tripulantes serán también sujetos de investigación: sus patrones de sueño, su cognición, su sistema inmune y su respuesta al estrés serán monitoreados con protocolos estandarizados diseñados para preparar a la humanidad para viajes aún más largos. Sus observaciones de la superficie lunar —fotografías, grabaciones, notas detalladas— ampliarán el conocimiento científico de un mundo que apenas hemos rozado.
Artemis II es una prueba, pero también es un umbral. Si Orion demuestra que puede llevar personas a la Luna y traerlas de regreso sanas y salvas, Artemis III aterrizará. Y después de eso, el horizonte apunta a Marte. Esta misión es el momento en que el sueño se convierte en ingeniería, y el próximo capítulo de la exploración humana comienza a escribirse.
Four astronauts will climb aboard a spacecraft in Florida this April and spend ten days orbiting the Moon—the first crewed lunar mission in more than fifty years. Reid Wiseman and Victor Glover, both NASA veterans, will fly alongside Christina Koch, another NASA astronaut, and Jeremy Hansen from the Canadian Space Agency. Their ship is called Orion, a capsule designed to carry humans on long journeys through deep space. The mission, Artemis II, is not a landing. It is an orbit—a careful, methodical loop around the Moon that will test whether the machinery keeping them alive actually works, and whether the systems NASA has built can sustain human beings on the far side of the Earth.
The Moon itself is the reason for all of this. It is a 4.5-billion-year-old archive, preserved in the vacuum of space, holding the geological record of the solar system's violent youth. Billions of years of solar activity and cosmic collisions are written into its rocks and dust. By sending humans to see it up close, to photograph it, to study it with their own eyes for the first time since 1972, NASA is gathering knowledge that will inform not just lunar science but the next giant leap: crewed missions to Mars. Artemis II is the bridge between where we have been and where we are going.
The journey begins at Kennedy Space Center on Florida's coast. The Space Launch System—the SLS, a rocket of unprecedented power—will lift Orion skyward, shedding its boosters and service module components as it climbs. The crew will orbit Earth twice. The first orbit takes ninety minutes; the second, much wider, stretches across nearly a full day. These loops serve a purpose: they allow the spacecraft's systems to be verified, and they build the speed and altitude needed for the long coast to the Moon. After the second orbit, Orion will separate from the final stage of the rocket and perform a series of proximity maneuvers, with the astronauts manually guiding the spacecraft for up to two hours. Then comes the burn—a firing of the engines that will send them on a four-day trajectory toward the lunar far side.
The astronauts will shed their launch suits once they reach orbit and spend the remainder of the mission in casual clothes, a small comfort in the confined quarters of the capsule. As they approach the Moon, they will travel more than 7,400 kilometers beyond its far side, a point in space where the Earth and Moon both fit in the windows of Orion, the Moon close and enormous, the Earth a distant blue marble more than 400,000 kilometers away. The return journey will take another four days, with Orion using Earth's gravity to slow itself rather than burning fuel—a elegant solution to the problem of bringing people home.
But this mission is not only about the view. The astronauts will be subjects in a series of medical and cognitive studies designed to understand how spaceflight affects the human body and mind. They will document how sleep, stress, cognition, and immune function change in the weightlessness and isolation of deep space. They will be the first crew to participate in standardized protocols for long-duration spaceflight, data that will be essential for the longer journeys ahead. Their observations of the lunar surface—photographs, audio recordings, detailed notes—will feed back to scientists on Earth, extending human knowledge of a world we have barely touched.
The ten-day mission is a test, but it is also a threshold. Artemis II will prove that Orion can carry humans safely to the Moon and back. It will demonstrate that the life support systems work, that the heat shields protect, that the parachutes deploy. Once those systems are proven, Artemis III will follow, and this time the spacecraft will land. Astronauts will walk on the lunar surface again. And after that, the path leads further still—to Mars, to the deep space missions that will require everything NASA has learned from returning to the Moon. Artemis II is the moment when the dream becomes engineering, when the next chapter of human spaceflight begins to unfold.
Citas Notables
The mission will demonstrate the capabilities of the Space Launch System and the critical life support systems of Orion for long-duration spaceflight.— NASA
The astronauts will be the first crew to participate in standardized protocols for long-duration spaceflight, providing data essential for future Mars missions.— NASA
La Conversación del Hearth Otra perspectiva de la historia
Why send people to orbit the Moon if they're not going to land? Why not just skip ahead to Artemis III?
Because you have to know the machine works before you trust it with your life. Orion has never carried humans before. The life support systems, the heat shields, the navigation—all of it needs to be tested in the actual environment where it will be used. An orbit around the Moon is the perfect test: far enough away that you're truly in deep space, close enough that you can still get home if something goes wrong.
What makes this different from the Apollo missions fifty years ago?
The scale of what they're trying to learn. Apollo was about reaching the Moon. Artemis is about understanding how humans can live and work in space for extended periods. These four astronauts will be monitored for how their bodies and minds respond to weightlessness and isolation. That data doesn't just inform the next lunar mission—it's essential for Mars.
The astronauts will see the far side of the Moon from 7,400 kilometers away. That's an extraordinary vantage point.
It is. They'll see something no human has seen since 1972—the lunar surface in detail, with the Earth hanging in the black sky behind it. But they're not just tourists. They're documenting everything. Photographs, recordings, observations. All of it goes back to scientists who are trying to understand the Moon's geology and history.
How long will the whole mission take?
Ten days from launch to splashdown. Four days to get there, time in orbit around the Moon, and four days back. It's a carefully choreographed journey, with every burn and maneuver planned to test the systems and conserve fuel.
What happens after Artemis II?
Artemis III lands on the surface. Astronauts walk again. And then the real work begins—using what we've learned to go to Mars. That's the ultimate goal. The Moon is the proving ground.