Astronautes de la Nasa travaillant à la surface de la Lune pour le programme Artemis III. © Nasa

NASA revealed possible landing sites for astronauts to return to the moon

A few days ago, NASA selected several potential landing sites on the moon for the Artemis III mission, the first of the program designed to take the United States back to the moon. NASA plans it in 2025 with a crew of two astronauts including a woman and a colored person. Thirteen locations of approximately 15 square kilometers have been identified within which one or more landing sites with a radius of more or less 100 meters are possible. These places were obviously not chosen at random. They offer ideal “technical” conditions for landing, living and working there and are of scientific interest.

Contrary to Apollo mission landing sitesis locatedequator and on the side visible from Earth, all of these future Artemis mission sites are at the South Pole of the Moon. The selection of several dozen potential sites, rather than a few, is explained by NASA’s desire to give itself some flexibility and launch flexibility throughout the year.

This selection was made on Database probe Lunar Reconnaissance Orbitersincluding Altitude and topographical maps which made it possible to localize white light peaks
The wavelengths of visible light range from about 380 nm (violet) to 780 nm (red). The visible spectrum is…” data-image=”” data-url=”https://” data-more=”Read more”>bright Forever, floor description
The floor is mostly assembled…” data-image=”” data -url= “” data-more=”Read more”>Floors Crater permanently in the shadow of The Sun is the closest star to Earth, from which it is about 150 million kilometers away. The Sun is 8.5 kParsecs from the center of the Milky Way. In the stellar classification, the Sun is a G2 type star.
The mass…” data-image=”” data-url=”https://news.” data-more=”Read more”>Sun and the terrain most suitable for a landing. They all possess light conditions for an uninterrupted period of at least 6.5 days, ie the duration planned for the Artemis III mission. These sunshine conditions are essential as they provide a source of energy and minimize temperature fluctuations.

Landing sites that meet both technical and scientific criteria

The choice of the landing site is always a headache for the scientific team of each mission, the location of which must be suitable not only for the researchers, but above all for the engineers and pilots of the landing lunar lander. Contrary to popular belief, it is not always possible to land where scientific interest is greatest, as there are many parameters to consider. For the most part they are tied to the combined abilities of the space launch system (SLS), from the spaceship Orion and Human spaceship landing system from SpaceX that define the mission profile and runway of the spaceship.

In addition, the surface on which Artemis III will land must also meet certain conditions, such as land that is as flat as possible and lightly encumbered with large rocks, and an altitude that facilitates communication with Earth.

They are all in close proximity to cavities or craters that are permanently shaded by the sun

These landing sites were also selected based on scientific recommendations. Not surprisingly, they are all in close proximity to cavities or craters that are permanently in the shadow of the sun, and whose floors and floors could harbor water ice. ” Some of the sites offered in these regions are in some of the oldest parts of the moon and, along with the permanently shaded regions, offer an opportunity to learn more about the moon’s history through unstudied lunar material said Sarah Noble, chief scientist on the Artemis mission for NASA’s Planetary Science Division.

This video shows a data visualization showing the locations of the 13 sites and highlighting the topography and exploration potential of these areas. © NASA Goddard Space Flight Center

Finally, the team of engineers and scientists responsible for selecting these locations also took the scientific goals specific to Artemis III, in particular landing in sufficient proximity to a region in the shadow of the sun so that the crew can easily reach them at all times, while at the same time limiting their deterioration or even pollution that the maneuver could lead to a landing. This is intended to allow the crew to collect samples and conduct scientific analysis in an area without being damaged by the spaceshipwhich will provide important information such as the depth, distribution and composition of water ice confirmed at the moon’s south pole.

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