NASA is starting the planning process for its scaled-back robotic Mars exploration program.
NASA hopes to have commercial operated flights to the International Space Station beginning around 2017.
It's the third round of NASA's program aimed at spurring the development of commercial crew vehicles.
NASA has appointed former astronaut John Grunsfeld to head the agency's Science Mission Directorate.
The ambitious telescope project, a successor to Hubble, could siphon funds from other planned missions.
Launches of Orbital Sciences Corp.'s Taurus 2 and Space Exploration Technologies Corp.'s Falcon 9 rockets, scheduled for this year, are expected to push into January and February.
SpaceX's Falcon 9 rocket experienced an engine glitch during its launch of the Dragon capsule, company officials said.