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(Natural News)
In a study published on April 15 in the journal
Tiny meteors in the form of interplanetary dust bombard Earth all the time. Some of these particles travel at exceptional speeds and turn into shooting stars in the process. Some survive the fiery trek through Earth’s atmosphere and reach the ground to become micrometeorites, which are dust-sized extraterrestrial rocks that land on the planet’s surface.
Now, by scouring Antarctica for micrometeorites, the researchers were able to quantify how much interplanetary dust hit Earth on average.
Looking for interplanetary dust in Antarctica
The solar system teems with interplanetary dust particles shed from asteroids and comets. Some of these particles get pulled into Earth’s orbit and nosedive to the planet at extreme speeds. This fallout of dust happens every day but is seldom observed because the particles measure only a few tenths to hundredths of a millimeter. If these tiny specks of dust reach the ground, they are impossible to tell apart from normal, terrestrial dust.