Atmosphere
The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere.
[NASA] A small natural object 1.5-5 feet was predicted to impact Earth’s atmosphere northwest of Australia & safely disintegrate today, 12:14 p.m. EDT. This is only the 13th small object detected in space prior to impact. These scenarios provide an invaluable test of our planetary defense capability