1) German surname 2) Impact crater on Mercury 3) John von neumann 4) Liselotte of the LPGA 5) Mathematician 6) The Fly director Kurt 7) Von neumann Found on https://www.crosswordclues.com/clue/neumann
[crater] Neumann is a crater on Mercury. It has a diameter of 120 kilometers. Its name was adopted by the International Astronomical Union in 1976. Neumann is named for the German architect Johann Balthasar Neumann, who lived from 1687 to 1753. ... Found on http://en.wikipedia.org/wiki/Neumann_(crater)