NASA will try to launch four space shuttle flights in 2007 to continue building the international space station.
That's according to managers for the U.S. space agency.
The targeted launch dates in 2007 will be June Eighth for Atlantis; August Ninth for Endeavour; October 20th for Discovery and December Sixth for Atlantis.
NASA officials also announced dates for two of next year's flights, although more shuttle missions are expected in 2008, including one to repair the Hubble Space Telescope.
Endeavour is scheduled to be launched on Valentine's Day in 2008 and Discovery is set to fly again on April 24th, 2008.