Firefly — which became the second private enterprise to achieve a lunar landing five months ago — priced the IPO at $45 per share, above an already upsized range, securing a valuation of $6.32 billion. That is ahead of both Trive Capital-backed Karman Holdings and Voyager Technologies, which went public earlier this year.

Another space stock is going public. But this isn't just any old space stock -- this one already landed on the moon.

The Cedar Park, Texas-based space company sold more than 19 million shares in its initial public offering at $45 apiece, raising $868 million.