I wonder how much mass is entering Earth's atmosphere every year in the form of meteoroids and asteroids. This excludes micro-meteoroids, dust particles, molecules etc.

Quick search result talks only about the number of object:

Every year, the Earth is hit by about 6100 meteors large enough to reach the ground, or about 17 every day, research has revealed.


Background: comparison of this natural reentry mass to the mass of reentering satellites, What impact will the deorbiting of thousands of satellites have on the atmosphere?

  • $\begingroup$ Did you try to look up "meteorites flux"? You will have to specify a minimum mass for exclusion of objects you do not consider as dangerous to get a meaningful answer. Also, mass alone will not suffice for comparison. Satellites are made in materials that disintegrate easily in the atmosphere. Regardless, you will not have difficulty convincing, w/o requiring "scientific" arguments, that a plane is more likely to be hit by a meteorite than by a decaying satellite or man-made orbiting objects. The only differences is in liability. $\endgroup$
    – Ng Ph
    Commented Jun 23, 2021 at 10:58
  • 1
    $\begingroup$ NASA states 44 tonnes of meteoritic material falls on the Earth each day. $\endgroup$
    – Fred
    Commented Jun 23, 2021 at 11:41
  • $\begingroup$ In Earth Science SE: Is Earth getting heavier or lighter? and various linked sources, and in Astronomy SE: If 50 tons or more of debris falls to earth everyday, is Earth getting heavier? $\endgroup$
    – uhoh
    Commented Jun 23, 2021 at 13:08
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    $\begingroup$ We use 3 distinct terms here: meteorid, meteorite and meteor. The differences are given by Britannica here. The OP's source: 17 meteorites reach the ground per day. Fred's NASA source (my interpretation): the Earth (and its atmosphere) crosses a cloud of 44 metric tons of meteors/day. In other terms, the Earth captures 44t of meteorids/day. Otherwise, the numbers would not be coherent (17 meteorites landed for a total of 44T today !?). $\endgroup$
    – Ng Ph
    Commented Jun 23, 2021 at 14:30
  • $\begingroup$ @Fred thanks that's what I've been looking for $\endgroup$ Commented Jun 25, 2021 at 10:42


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