What Webb Sees
Students learn how the James Webb Space Telescope uses a gold-coated segmented mirror, a five-layer sunshield, and a cold home near the Sun-Earth L2 point to see infrared light, and what that light reveals about star birth, galaxies, early galaxies, and exoplanet atmospheres.
Grades 5-8About 15 minutes of narrated flight, plus discussion stops8 stops
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What students will see and do
Students fly from Earth to Webb, then to the Eagle Nebula's Pillars of Creation, the Carina Nebula's Cosmic Cliffs, Stephan's Quintet, the edge of the observable universe, and back to Webb. Aetherion pauses three times: at Webb (why build a big mirror from 18 matching segments), at the Eagle Nebula (what infrared reveals that visible light hides), and at the edge of the observable universe (seeing galaxies as they were long ago).
Learning objectives
- Explain why Webb observes in infrared light and why the telescope must be kept very cold.
- Describe the purposes of Webb's gold-coated segmented mirror and five-layer sunshield.
- Compare what visible and infrared images show in a dusty star-forming region.
- Explain how looking at distant objects means looking back in time.
NGSS connections
| MS-PS4-2 | Different wavelengths of light are reflected, absorbed, or transmitted differently by gold, dust, and gas. |
|---|---|
| MS-ESS1-3 | Students compare the sizes and distances of nebulae, galaxy groups, and the observable universe. |
| MS-ETS1-2 | The folding mirror and sunshield show how engineers evaluated design solutions against strict constraints. |
Stops on this journey
- A Telescope Folded Like Origami
- The Golden Mirror (discussion stop)
- A Sunshield the Size of a Tennis Court
- The Pillars of Creation (discussion stop)
- The Cosmic Cliffs
- Galaxies in a Crowd
- Looking Back in Time (discussion stop)
- Reading Distant Air
Vocabulary
- infrared
- wavelength
- segmented mirror
- sunshield
- L2 point
- nebula
- spectrum
- observable universe