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Is Lunar Dust on the moon actually volcanic ash?
No. The dust on the moon is accumulated micrometeorites.
On average what is the weight of all of the micrometeorites that fall to the earth on a daliy basis?
~ 50 to 60 tons / day
What space matter has fallen into earths surface from outer space?
About 100 tonnes of "micrometeorites" litter Earth every day.
How many objects fall to earth daily?
That depends how big an "object" you want to accept. Lots of micrometeorites - pieces of dust, basically - fall on Earth each day. The Wikipedia article on micrometeorites estimates about 1017 particles larger than 10 µm a year. That's many millions every second.
What problems do micrometeorites cause for spaceships?
Micrometeorites and undetectable bits of space junk (0.4 mm small) pose serious threats to every current and future manned space mission. The particles could travel in as fast 12 miles per second, with enough momentum to melt and vaporize aluminum spacecraft skin.
Causes of mechanical weathering on the moon?
The major cause of mechanical weathering on the moon is micrometeorites. These tiny rocks hit the moons surface and over time, change it.
If you left footprints on the moon what would happen to them?
The footprints on the moon left by the astronauts will still be there in a few thousand years. They will eventually be covered with new dust from micrometeorites.
Why are micrometeorites dangerous on the moon?
Because they are traveling at high rates of speed and there is no atmosphere to slow them down before they could contact people or craft, which could cause death or damage.
Is the earth getting heavier or lighter with the passage of time?
The Earth is steadily getting heavier because thousands of tons of meteorites and micrometeorites fall onto its surface every day.
Why is the Moon's surface not worn and change like the earth's surface?
No atmosphere or water to do any weathering. The weathering of the moon largely consists of being hit by micrometeorites, mostly dust-sized.
What would a house on the moon be made of?
The basic requirements would be any material that could be made airtight and heat insulated. In addition it would need to withstand solar flares and micrometeorites.
What are the three sizes of meteors?
Meteors (meteorites, actually) come in all sizes, from microscopic to bigger than houses. One can make artificial categories of 1) micrometeorites (very common); 2) gravel-sized meteorites (less common, but affordable) and 3) massive (seen only in museums).
