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Unveiling The Invisible Universe

There is more to the universe than meets the human eye.

Most of what we know about the universe beyond Earth comes from light. By analyzing details of different types of light—radio waves, microwaves, infrared light, visible light, ultraviolet light, X-rays, and gamma rays—we can figure out what the universe is made of, how it is organized, and how it changes over time.

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Aid in Infrared

The firefighter's most critical job is to save lives.

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Smoke blocks visible light making it difficult to see.

Infrared light passes through the smoke revealing a hidden victim.



Life and Death of Stars

Other Solar Systems, Other Planets

How Do We Know?

History and Origin of the Universe

Cosmic Mysteries & Extreme Physics

Visible light image: NASA, Caltech/IPAC, and the Pasadena Fire Department.

Infrared image: NASA, Caltech/IPAC, and the Pasadena Fire Department.

Unveiling The Invisible Universe is adapted from Cool Cosmos by Caltech/IPAC with additional contributions from Bruno Merin and Miguel Merin (Pludo).