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Dr. Michelle Thaller, Astronomer NASA’s Jet Propulsion Laboratory

Exploring the Invisible Universe. The Space Infrared Telescope Facility Exploring the Invisible Universe. Dr. Michelle Thaller NASA’s Jet Propulsion Laboratory The Spitzer Space Telescope. Dr. Michelle Thaller, Astronomer NASA’s Jet Propulsion Laboratory California Institute of Technology.

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Dr. Michelle Thaller, Astronomer NASA’s Jet Propulsion Laboratory

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  1. Exploring the Invisible Universe The Space Infrared Telescope Facility Exploring the Invisible Universe Dr. Michelle Thaller NASA’s Jet Propulsion Laboratory The Spitzer Space Telescope Dr. Michelle Thaller, Astronomer NASA’s Jet Propulsion Laboratory California Institute of Technology Dr. Michelle Thaller Jet Propulsion Laboratory

  2. What is Infrared Light and What does it tell us? • Infrared light is a form of electromagnetic radiation, one that is invisible to our eyes. • Infrared light is what we commonly think of as “heat” • Infrared light is emitted by anything in the universe with a temperature (above absolute zero). • Objects below 1,000 degrees C radiate mostly in the infrared.

  3. Infrared and Temperature Michelle seen with an infrared camera (after playing with an ice cube). Warm areas are bright and cool ones are dark.

  4. Infrared and Temperature A Blow-Dryer Ice Cream

  5. Properties of Infrared Light • Infrared light can pass through many things that block visible light, like smoke and dust (and most plastics). Michelle Inside of Black Plastic Bag Fireman Inside of Smoke-filled Room

  6. Properties of Infrared Light • Infrared Light is also blocked by things that let visible light through (like our atmosphere!) A Piece of Glass Completely Blocks Infrared Light

  7. Pillars of Creation: star formation caught in the act!

  8. The Birth of New Solar Systems

  9. An artist’s conception of the new planet forming in the nebula. We think it’s less than one million years old (just a baby, really).

  10. Sedna Stats: Currently 8 billion miles away 84 billion miles away at aphelion (900 AU) ~10,000 yr orbit

  11. The Whirlpool Galaxy: infrared shows where the dust, not just the stars are, inside galaxies. That lets us study the underlying “skeletal structure” of galaxies.

  12. Mergers… Interactions between galaxies create mergers,

  13. …or massive disruptions

  14. The search for giant black holes: what powers the most active galaxies?

  15. Visit our website at coolcosmos.ipac.caltech.edu • Also in Spanish • Request videos and posters from: Michelle Thaller thaller@ipac.caltech.edu (626) 395-8670

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