Live coverage: Dragon cargo craft arrives at space station

The human-rated Crew Dragon spacecraft being developed by SpaceX will return to Earth under parachutes for splashdowns in ocean, and not execute helicopter-like propulsive touchdowns on land, a SpaceX official confirmed Monday.

Speaking publicly for the first time since a Falcon 9 rocket failure that destroyed a Dragon cargo capsule for the International Space Station, SpaceX founder Elon Musk said Tuesday that engineers are still piecing together what happened during the June 28 accident in hopes of announcing more details within a few days.

The escalating wildfire at Vandenberg Air Force Base grew even larger Monday despite the round-the-clock efforts of firefighters trying to bring the blaze under control before it threatens United Launch Alliance and SpaceX launch pads used by Atlas 5, Delta 4 and Falcon 9 rockets.