On November 13-15 astronomers will meet at the "Astrophysics 2020: Large Space Missions Beyond the Next Decade" conference at the Space Telescope Science Institute in Baltimore, Md. to discuss the space observatories and science investigations that could be realized in the 2020-2030 decade.
Though the Hubble Space Telescope was launched in 1990, NASA started planning two decades earlier by establishing, in 1970, committees to plan the engineering of the space telescope and to determine the scientific goals of the mission.
The year 2020 is 13 years away, but astronomers now need to start envisioning astrophysics that could be accomplished from space in the 2020 era and beyond. Lead times of at least a decade are required for the most ambitious of space observatories.