Sandbox craters reveal secrets of planetary splash marks and lost meteorites

Credit: Shane.torgerson  https://commons.wikimedia.org/wiki/File:Meteorcrater.jpg

by Andrew Scott, Okinawa Institute of Science and Technology

Every day, Earth is constantly bombarded by about 100 tons of falling objects from space, mostly simple dust or sand-sized particles that are destroyed as they hit the upper atmosphere. But very rarely, a piece large enough to survive the intense heat of entry manages to fall all the way down to the Earth's surface, where its galactic journey ends with a bump.

Read more at: https://phys.org/news/2018-06-sandbox-craters-reveal-secrets-planetary.html#jCp