On Thursday, May 23 from 6:00 PM through midnight ET there will be network maintenance. Some archive services maybe affected for short periods of time.
Data Use Policy
Although there is no cost involved in retrieving data from MAST,
researchers are requested to include an acknowledgement (as shown below)
in any publications that make use of data obtained from MAST:
"Some/all of the data presented in this paper were obtained from the Multimission Archive at the Space Telescope Science Institute (MAST). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. Support for MAST for non-HST data is provided by the NASA Office of Space Science via grant NAG5-7584 and by other grants and contracts."
Users wishing to use documents obtained from the MAST web
site for other than personal use, should first contact the
MAST staff at email@example.com regarding neccessary
permissions and acknowledgements.