The History of the Sun is Written on the Moon - by PaulMattSutter
Admittedly, there has been some surface activity on the Moon since its initial formation, like lava flows and impacts from asteroids and comets. But that activity is actually a help rather than a hindrance, according to the white paper. Lava flows can seal off large sections of the surface of the Moon from further interaction with the Sun. If we are able to dig down beneath the flows and into the deeper regolith of the Moon, we would have a snapshot in solar history from before the lava flowed.
The researchers outlined a few key quantities that we can measure from lunar samples and how they connect to the activity of the Sun. For example, we can look at how long a sample has been exposed toand use that to model the rate of cosmic ray production from the Sun for the past few billion years.
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