Watch video above to see these stories on AZ Illustrated Science on Tuesday, May 6:

HOMOLAVI: Archeologists unearth ancient Hopi ruins, and they hope to learn more about the Southwest's earliest inhabitants.

MONTEZUMA'S WELL: Montezuma Castle National Monument, between Phoenix and Flagstaff, is home to a body of water that has left scientists perplexed.

PERMAFROST MICROBES: Researchers study melting permafrost to better understand the future of global climate change.

AZ Illustrated Science is produced by Georgia Davis. Contact her at gdavis@azpm.org.