Some scientists are optimistic about what they say will be new opportunities and clout that the Earth and space sciences will have under the organizational restructuring that NASA announced 24 June, while others are concerned that these sciences may be buried bureaucratically, and suffer fiscally. Under the restructuring, which takes effect on 1 August, Goddard Space Flight Center director Alphonso Diaz will become the Science associate administrator. Associate administrator for space science Edward Weiler will become the new head of Goddard. Associate administrator for Earth Science, Ghassem Asrar, will become science deputy associate administrator and chief scientist for exploration.