This first light, as it's called, shows that all of the spacecraft's systems are working just as expected. "Based on the ...

A simple tweak to the usual setup is all that is needed to enhance a spectroscopy technique that uses waves in the terahertz ...

and uses the fact that for medium resolutions there exist spectral regions uncontaminated by atmospheric absorption lines. However, it is also applicable (in a somewhat modified form) to spectra ...