First clouds discovered on an object outside our solar system:
Gemini press release: http://gemini.edu/node/12536
Daily Mail article: http://goo.gl/pPEcnc
The discovery was made using the Gemini North Telescope on Mauna Kea. As someone very familiar with doing spectroscopy in the 4.5 to 5 micron region, I can't start explaining how difficult these observations were. You're dealing with our sky which is typically much brighter than the object you're observing, and any small change in the amount of water above the telescope creates noise that can be very hard to remove.
Gemini press release: http://gemini.edu/node/12536
Daily Mail article: http://goo.gl/pPEcnc
The discovery was made using the Gemini North Telescope on Mauna Kea. As someone very familiar with doing spectroscopy in the 4.5 to 5 micron region, I can't start explaining how difficult these observations were. You're dealing with our sky which is typically much brighter than the object you're observing, and any small change in the amount of water above the telescope creates noise that can be very hard to remove.