"Scientists searching for worlds outside of the Solar System say that three such planets — distant gas giants that resemble Jupiter — are surprisingly dry.
The atmospheres of these exoplanets, known as ‘hot Jupiters’, contain between one-tenth and one-thousandth water vapour than predicted, measurements from the Hubble Space Telescope show. The findings, published 24 July in Astrophysical Journal Letters, are at odds with theories of how planets form." - Mark Zastrow, July 24, 2014, 'Hot Jupiter' measurements throw water on theory, Nature International Weekly Journal of Science
To read more click here.