2  October 2002
De Young/NVO-Codata
3
Discoveries
•When and where are discoveries made?
–Always at the edges and boundaries
–Going deeper, using more wavelength bands
–Physicists make many measurements and discard most; Astronomers make many measurements and find discovery in their entirety and combination
•Metcalfe’s law
–Utility of computer networks grows as the
number of possible connections: O(N2)
•VO: Federation of N archives
–Possibilities for new discoveries grow as O(N2)
•Current sky surveys have proven this
–Very early discoveries from SDSS, 2MASS, DPOSS