Ecological data collected in the field gives researchers a window into how ecosystems and climate dare changing in a particular area. But to see the bigger picture, you have to take a step back—way back. All the way to space.

If you've been out walking in the woods or tall grasses this summer, you may have brought home an unwelcome passenger on your clothes or person. Ticks—and the diseases they carry—are on the move throughout much of the United States.