The NTSB begins the on-site part of its investigation into the crash.
Hart: Team arrived this morning, formed investigative groups, and went to the #SpaceShipTwo accident site.
— NTSB (@NTSB) November 2, 2014
It says the entire investigation could take up to 12 months while the on-site phase is expected to be between four and seven days. The agency’s acting chairman says he plans to offer regular press briefings throughout the investigation: