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Launchpad: SAGE III Goes to the International Space Station

NASA's third generation science instrument, SAGE III, sheds light on how aerosols, water vapor and other gases interact with and affect our atmosphere. See how a unique hexapod helps the instrument stay oriented on the International Space Station and how NASA plans to use moonrise and moonset to double measurement capabilities, helping us truly understand the chemical balance in our atmosphere.

Discussion and writing prompts

1. Earth’s atmosphere contains gases and particles that are difficult or impossible to observe with our eyes. How can instruments such as SAGE III help scientists study parts of the atmosphere that cannot be seen directly?

2. SAGE III must remain precisely oriented as it collects measurements from aboard the International Space Station. Why is accurate positioning important for a scientific instrument, and how does the hexapod help engineers meet this challenge?

3. SAGE III uses sunlight (during sunrise and sunset) and moonlight (during moonrise and moonset) to gather information about Earth’s atmosphere. How can studying the way light travels through the atmosphere help scientists determine what is present in the air?

Background Information

Grades 3 through 8

Grades 6 through 8

Grades 6 through 12

Activities

Grades 3 through 8

Grades 3 through 12

Grades 6 through 8

Grades 6 through 12

Grades 9 through 12