If the leak cannot be fixed, the SLS rocket will have to return to the Assembly Building and its launch will be delayed until late September or October.
The launch of the SLS rocket for the “Artemis 1” mission to the Moon after 50 years is turning into a thriller, as according to NASA there was a hydrogen leak.
“While the loading of liquid oxygen to the interim cryogenic propulsion stage continues and the main stage tanks continue to be replenished, engineers are resolving an issue that is regulating one of the RS-25 engines on the bottom of the rocket,” he said in a statement.
After all, these leaks can become dangerous, since hydrogen is a highly flammable material.
The teams are also looking at a crack in the thermal protection system material on one of the flanges.
In case the leak cannot be dealt with, the SLS rocket should return to the Assembly Building and its launch will be delayed until late September or October.
Return to the Moon after 50 years
Fifty years after the end of the historic program “Apollo“, started today new US space program “Artemis” (sister of Apollo in Greek mythology, that’s why this name was chosen already during Trump’s presidency). The US begins – if all goes according to plan – their mission to return to the Moonfor the first time since 1972 when they last set foot on the moon.
At 15:33 Greek time on Monday, the launch of the “Artemis 1” mission with a huge Space Launch System (SLS) rocket which will carry the unmanned Orion capsule around the Moon for a six-week test flight and then return to Earth.
The weather forecasts so far give an 80% chance that today’s weather conditions will be favorable. If something goes wrong (due to a technical problem or weather), September 2nd or 5th have been given as alternative launch dates.
It is noted that on Sunday a storm hit the Kennedy Center and the lightning rods around the launch pad attracted the lightning, but NASA was not particularly worried.
THE SLS together with Orion are 98 meters tall. The SLS, which took more than ten years to develop and build, is considered the most powerful and complex rocket in the world, although, according to the Economist, it is an overpriced state construct and a waste of taxpayers’ money. The main subcontractors for the Artemis program are Boeing for the SLS and Lockheed Martin for the Orion capsule.
The last time such a mega-rocket was launched from the Kennedy Center was in 1973 when a Saturn V rocket carried the Skylab space station into orbit. NASA’s design is the 2024 launch of the manned Artemis 2 mission around the moonuntil finally in 2025 the Artemis 3 mission lands on the Moon (carrying the first female astronaut to the Moon).
The foundations will probably be laid this time for a more permanent lunar base and the presence of astronauts on the Earth’s satellite, with the ultimate goal of a base on Mars in the 2030s. However, several experts do not rule out that this whole schedule is too “tight” ” and ambitious, so it can be pushed a few years into the future.
The last people to walk on the moon were the two male astronauts of the Apollo 17 mission in 1972, while ten other American astronauts had preceded them during five previous missions, with the first landing on the moon by the Apollo 11 mission in 1969.
Recent years China has successfully landed three robotic missions and plans its own lunar base for the 2030s, India and Israel sent their own lunar missions in 2019 but failed, while a South Korean mission is on the way with the goal of orbiting the moon. There is generally traffic from several countries bound for the Moon, and the US has an extra competitive incentive to catch up.
NASA has in recent decades turned its attention to other planets (Mars) and large moons (Saturn and Jupiter), but now it is interested again in the Moon, including as a way station for more distant space goals. Especially since in recent years it has been realized that there is enough water in frozen form on the moon, something important for a more permanent human presence, not only as drinking water, but also as rocket fuel after it breaks down into oxygen and hydrogen.
The Moon or a space station in lunar orbit will act as a refueling station for a longer journey, e.g. on Mars. At the moment, however, scientists do not know exactly how much water there is on the Moon and how easy it will be to use in practice, as it is usually found deep in sunless craters.
NASA TV will broadcast live (in English) the launch, starting at 13:30 Greek time.
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