Virgin Galactic Holdings Inc. still plans to make its first commercial space-tourism flight this year and took a step toward resuming ticket sales for jaunts expected to cost upward of $250,000.
Shares in the Richard Branson-backed venture that went public last year have soared in recent weeks, as investors bought into its first-mover advantage in the fledgling space-tourism market, pushing its valuation toward $7 billion.
The…