Urban collection of modern-day micrometeorites
Wednesday, January 25, 2017 - 14:02
in Earth & Climate
More than 100 billion micrometeorites (MMs) fall to Earth each year. Until now, scientists have believed that these particles could only be found in the cleanest environments, such as the Antarctic. Now they show that, contrary to that expectation, micrometeorites can be recovered from city rooftops and that, unlike those from the Antarctic, they are the youngest collected to date.