National Astronomical Observatory of Japan

Subaru Astronomers Measure Meteoroid Tunnels in Earth's Atmosphere

| Science

When meteoroids flash through the Earth's atmosphere, they bore tunnels through the air, leaving behind narrow meteor tracks that are heated by the collision of the fast-moving incoming object with atoms of highly diluted atmospheric gases. Most meteoroids are bits of space debris the size of a grain of sand. The width of the tracks they make has long been known to be narrower than a meter, but until recently, more precise measurements have been impossible to make.


More info: Subaru telescope web page