The total quantity of H2O spied by the instruments was more than 100kg. It came out of a 20m-30m wide hole dug up by the impacting Centaur rocket.
The LCROSS scientists stressed that the results presented on Friday were preliminary findings only, and further analysis could raise the final assessment of the amount of water in Cabeus.
Peter Schultz, from Brown University and a co-investigator on the LCROSS mission, said: "What's really exciting is we've only hit one spot. It's kind of like when you're drilling for oil. Once you find it in one place, there's a greater chance you'll find more nearby."
Source: BBC News