NASA has the most powerful carrier rocket "Space Launch System" in history.

10 cube satellites. Image source: Cory Huston/NASA

At the end of August, the NASA (NASA) has the most powerful carrier rocket in history, the Space Launch System (SLS) will conduct the first test flight. This 98 -meter -high rocket will start a 42 -day moon round trip, of which 3 "astronauts" -3 human models equipped with instruments.

According to "Science", SLS is part of the NASA moon landing project "Artemis" plan. It is expected to send the astronauts to the moon as early as 2025. Although SLS did not take a real person on August 29, there were 10 cube satellites. Each satellite is about the size of a briefcase, which can be used to detect the moon (several cube satellites will focus on the moon ice), asteroid and deep space radiation environment.

The satellite manufacturers are worried about being launched, and they are worried that half of the satellites may not have enough energy to open the task. Due to launch delay, these satellites have been stranded in the Rockets for more than a year, and their battery power is about to be exhausted. Some can not even start and expand solar panels, so they cannot charge.

"The longer the waiting time, the greater the risk." Said the chief researcher of the Lunar Observation of small satellites (one of the 10 cube satellites) and Ben Malphrus from the University of Mohe Dezhou University in the United States. These 10 cube satellites will be used to monitor the separation of satellites and rockets, and study the impact of radiation on yeast, solar wind and magnetic field, moon ice, and the Earth's plasma body imaging, new infrared spectrometer test, plasma propeller test, micro -lander Moon to the moon. Land on the surface and use Sunfan to fly towards the asteroid. Among them, if the battery of 5 cube satellites is not removed from the rocket, it cannot be charged.

NASA engineers are worried that charging satellite batteries in the Rockets may cause discharge, which will damage other parts of the Rockets. For example, the cube satellite battery reserves called Lunah Map may be 50%, which pose a huge threat to the successful completion of the task, because when the battery energy drops to 40%, the cube satellite will not be able to complete a series of initial operations and startups, and it will not be hit. The solar panel cannot be charged.

(Source: Journal of Science)

【Edit: Fu Sakura】

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