Virgin Galactic's recent tranche of spaceflight expeditions at $750,000 per seat sold out ahead of schedule and was oversubscribed, the company says. The strong booking adds over $50 million to expected future spaceflight revenue. Virgin Galactic plans to release a new tranche of spaceflight expeditions at higher price points this fall. The customer mix includes a wide range of buyers, says CEO Michael Colglazier.

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