Watch video above to see these stories on AZ Illustrated Science on Tuesday, Dec. 3:

UA SCIENCE SKY SCHOOL: The UA Science Sky School is an outdoor education program run by the university's graduate students. It brings K-12 children out onto Mt. Lemmon to expose them to different fields of science, such as geology, biology and astronomy.

BEACH SAND IN MARS: University of Arizona Ph.D. student Shaunna Morrison is the first person to identify minerals on the surface of Mars. For some time, scientists have known what elements are present on the "Red Planet", but they have not known how those elements combine to form minerals.

FUN CHEMISTRY TO INSPIRE: Kids in the Arizona cities of Palominas, Bisbee, Naco and Douglas are getting some real close encounters with chemistry, in hopes they will consider careers in math and science. The efforts, known as STEM and ASPIRE, are part of Cochise College's program to help motivate school children in rural areas to study science, technology, engineering and math.

ASTROPHOTOGRAPHER: Comet ISON is with us no more. The 4.5 billion year old comet fell apart Thanksgiving Day as it traveled around the sun. But, never fear, renowned astrophotographer Adam Block photographed the popular, green comet before its solar close-encounter.

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