small ambiguous comic noodle, about 3” wide


What is the universe made of? We only know a tiny fraction  4 percent  of the answer. From our little corner of the cosmic map, how do we know what else is out there? Luckily, we have space messengers (otherwise known as cosmic rays) that bring us data from parts of the cosmos far beyond our reach. Veronica Bindi explains how cosmic rays transmit information about our universe from the great beyond.

Watch the full lesson here»

(via galaxyclusters)

September 29 2014