One Crater on the Moon is Filled with Ice and Gas that Came from a Comet Impact - Universe Today universetoday storybywill
A major aspect of these plans was exploring the southern polar region to find a potential lunar base site. The local presence of water ice in this cratered region made it especially attractive from an
For more than a decade, LAMP has examined the lunar surface for signs of ice and frost in the polar regions. This was no easy task because of the permanently-shadowed nature of the region and the fact that most of the water ice is located beneath the crater floors. By capturing the glowing hydrogen emissions of water – known as the Lyman-alpha line –that helped scientists characterize the distribution of water and other molecules on the Moon.
In the end, scientists narrowed it down to three possibilities: volcanic outgassing, comet or micrometeoroid impacts, or surface chemistry initiated by solar wind particles. Each of these possibilities has implications since they also imply when the water was delivered and in what quantities. For their study, the team reexamined the plumes measured by LAMP and compared the elemental composition of the volatiles to that of the potential sources.
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