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Infrared Astronomy

The study of infrared energy produced by astronomical objects. Infrared is a form of energy with a longer wavelength and lower frequency than visible light. It is produced by relatively cool objects, such as planetary systems and clouds of interstellar dust. Earth’s atmosphere absorbs most infrared energy, so it is best studied with telescopes in space or aboard high-altitude balloons or aircraft.

Radio Programs

Moon and Aldebaran The cool glow of a bright star February 20, 2021

WISE Getting “wise” to the infrared sky December 14, 2019

Messy Births The messy process of making planets October 24, 2019

Moon and Companions A star’s unseeable brightness July 12, 2019

Vega Stirring up dust around a bright star June 14, 2019

Stretching Out The universe stretches out December 10, 2018

Spitzer Space Telescope New targets for a space telescope August 25, 2018

IRS 7 A giant in the heart of the Milky Way July 10, 2018

Evaporating Galaxy A galaxy that’s ripping itself apart March 23, 2016

WFIRST Unwrapping a Christmas present March 17, 2016

James Webb Telescope Looking for the first galaxies March 16, 2016

Moon and Saturn Scoping out a giant ring February 2, 2016

Tau Ceti Visiting a dusty star system — after this. January 4, 2016

Featured Images

Multi-spectral view of Cassiopeia A, a supernova remnant

Brilliant Demise October 26, 2020
Infrared view of Jupiter

Blazing Giant May 9, 2020
Artist's concept of Spitzer Space Telescope

Saying Goodbye January 30, 2020
Infrared view of Lambda Centauri Nebula

A WISE spacecraft December 14, 2019
The star system Apep, which may detonate as a gamma-ray burst

Spooky Star August 15, 2019
Infrared view of a stellar nursery in Cepheus

Busy Nursery June 3, 2019
W40 stellar nursery

Delicate Butterfly March 28, 2019

Glowing Planets August 25, 2018
Combined optical, infrared view of the Crab Nebula

Colorful Crab April 19, 2018
Infrared image of Alpha Camelopardalis

Plowing Through the Galaxy January 25, 2017
Artist's concept of 2016 WF9

Heading In January 1, 2017
Cassini infrared view of Titan

Through the Smog July 15, 2016
Infrared view of the Orion Nebula

Brilliant Nursery July 12, 2016

Cloud Stripes June 26, 2016
Infrared image of a bow shock in front of a fast star

Shocking Star January 7, 2016
Infrared view of the interstellar medium

Filling the Void April 9, 2015