Roughly 1,600 tons of
#micrometeorites and 3,600 tons of cosmic spherules reach the surface every year. Lower density and higher porosity suggest a
#cometary ☄️ origin, and higher density and lower porosity suggest a
#meteoritic origin
https://www.sciencealert.com/5-200-tons-of-micrometeorites-are-raining-down-on-earth-s-surface-every-year
5,200 Tons of Extraterrestrial Dust Rain Down on Earth Every Single Year
We've known for a while that Earth is under a constant rain of space dust, and that it's copious.
ScienceAlert
Records of cometary dust hitting the asteroid Ryugu
<p>The Hayabusa2 mission that collected samples from the asteroid Ryugu has provided a treasure trove of insights into our solar system. After analyzing samples further, a team of researchers have unearthed evidence that cometary organic matter was transported from space to the near-Earth region.</p>
EurekAlert! APOD: 2021 July 26 - CG4: A Ruptured Cometary Globule
A different astronomy and space science
related image is featured each day, along with a brief explanation.