Ep. 502: No Touching: Determining Composition of Worlds Remotely

How do you know what something is made of if you can’t reach out and touch it? How do we know what planets lights years away have in their atmosphere? What about the rocks all around Curiosity? Or the geysers coming out of Europa and Enceladus? Scientists have a few handy tricks.

This episode was recorded on Thursday, Oct 18, 2018. We usually record Astronomy Cast every Friday at 3:00 pm EDT / 12:00 pm PDT / 19:00 UTC. You can watch us live on here on AstronomyCast.com, or the AstronomyCast YouTube page.

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This episode is sponsored by: Casper.

Show Notes

Spectroscopy
What is spectroscopy?
Studying spectrographs of stars and planets
How Does a Spectrograph Work? [Infographic]
Every color of the Sun’s rainbow: Why are there so many missing?
Spectrographs and Spectra (with images)
KMOS (K-Band Multi Object Spectrometer) at VLA
Spectrophotography With a GRISM Star Spectrograph
Mars Curiosity Rover and its equipment
Emission and Absorption lines
TESS Exoplanet Mission – (Transiting Exoplanet Surveying Satellite)

Transcript

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Transcription here

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