The recent breakup of an experimental spaceship during a test flight raises implications about the future of space tourism and whether the risk will put people off.

Federal accident investigators still don’t know what happened when Virgin Galactic’s SpaceShipTwo plummeted into the Mojave desert, killing the co-pilot and badly injuring the pilot who parachuted out of the ship, according to the Associated Press. The question is, will it delay the date when customers will risk their life and limb to rocket into space?

National Transportation Safety Board investigators have been examining the crash site from Friday’s incident, and also collected some debris from 35 miles away. NTSB said cockpit data showed the co-pilot had unlocked the aircraft’s “feathering system” — where the aircraft’s twin tails rotate up at an angle to slow descent — earlier than planned

Although investigators found the co-pilot unlocked the feathering system by pulling a lever, that alone would not have been enough to start the feathering process that led to the aircraft’s demise. That means either the co-pilot activated the system at the wrong time for some reason, or that the aircraft did it on its own.

The feathering happened as the aircraft was moving at 760 miles per hour, which caused the plane to disintegrate within a few seconds. The feathers aren’t supposed to be engaged until the Mach 1.4 mark, or 1,000 mph.

It will likely take months to determine the cause of the crash.

Virginia Galactic co-owner Richard Branson said he wants to create a space tourism industry, but the crash sets that goal back as the company seeks to understand why it happened and construct a new aircraft that better handles it.