Firefly Aerospace began trading on the Nasdaq under the ticker symbol “FLY.” The company’s Blue Ghost lunar lander successfully touched down on the moon earlier this year. Firefly Aerospace Inc.’s stock received a warm welcome on Wall Street on Thursday, as investors piled into the space sector’s latest debutant.

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

Seven IPOs and two SPACs debuted this week, while five small IPOs and seven SPACs submitted initial filings. Read more here.