Submitted by StoryAndAHalf t3_y6k4rp in todayilearned
Vlad_the_Homeowner t1_isq3ira wrote
Reply to comment by darthshaver in TIL 5,200 tons of space dust falls on Earth every year by StoryAndAHalf
>A total of 1280 unmelted micrometeorites (uMMs) and 808 cosmic spherules (CSs) with diameters ranging from 30 to 350 μm were identified. Within that size range, we measured mass fluxes of 3.0 μg.m−2.yr−1 for uMMs and 5.6 μg.m−2.yr−1 for CSs. Extrapolated to the global flux of particles in the 12-700 μm diameter range, the mass flux of dust at Earth's surface is 5200 tons.yr−1 ( 1600 and 3600 tons.yr−1 of uMMs and CSs, respectively).
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