Tau.Neutrino said:
Water vapor detected in atmosphere of Super-Earth in the habitable zone
Water is crucial to life as we know it, so it’s one of the key things astronomers look out for on exoplanets. And now, water vapor has been detected in the atmosphere of a potentially habitable exoplanet for the first time.
more…
Water vapour is well known in the atmosphere of brown dwarfs. As is methane.
No wait. I may be wrong here.
Titanium dioxide dominates the spectrum of the hottest brown dwarfs.
Next hottest is dominated by sodium, potassium and metal hydrides.
Cooler still is dominated by methane.
Even cooler is dominated by ammonia.
I’m not sure where the spectrum of water fits into the picture.
Good on them for having so sensitive a spectrograph that they can observe the absorption lines of water vapour.