![A picture of the Helix Nebula](https://www.nasa.gov/wp-content/uploads/2023/02/edu_srch_cool_cosmos.png?w=320)
Audience
Educators, Students
Grade Levels
Grades K-4, Grades 5-8, Grades 9-12, Higher Education, Informal Education
Subject
Physical Science, Space Science, Spanish, Waves, Optics, Physics, Light, Telescopes, Astronomy
Type
Lesson Plans / Activities, Other Multimedia
Open a door into the fantastic world of infrared astronomy. Check out the classroom activities, experiments, images and videos. A Spanish version is available.
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