3 ms·
Sounds very weird. Without atmosphere the dust... just falls. No dust in the wind there, because no wind. And in the surface there is already plenty of it.
by narag 4y ago
Sounds very weird. Without atmosphere the dust... just falls. No dust in the wind there, because no wind. And in the surface there is already plenty of it.
- wumms 4y agoNot supporting the "thousands of years" part of your parent's comment, but the moon gets hit by solar wind; "electrostatic charging caused the dust to levitate" [0]. Quote from "Moon Storms" [1]: "To everyone's surprise," says Olhoeft, "LEAM saw a large number of particles every morning, mostly coming from the east or west--rather than above or below--and mostly slower than speeds expected for lunar ejecta." What could cause this? Stubbs has an idea: "The dayside of the moon is positively charged; the nightside is negatively charged." At the interface between night and day, he explains, "electrostatically charged dust would be pushed across the terminator sideways," by horizontal electric fields. [0] "Moon Fountains" https://web.archive.org/web/20100319112529/http://science.nasa.gov/headlines/y2005/30mar_moonfountains.htm https://web.archive.org/web/20100319112529/http://science.na... [1] "Moon Storms" https://web.archive.org/web/20100106144102/http://science.nasa.gov/headlines/y2005/07dec_moonstorms.htm https://web.archive.org/web/20100106144102/http://science.na...
- narag 4y agoWow, so I need to add a feather duster and an... electrostatic vacuum filter to my lunar excursionist kit!