Space stocks are getting more attention lately with the industry expanding. Rocket Lab (RKLB) is growing its contract list with NASA and private clients like Planet Labs. Lockheed Martin (LMT) is still the big diversified player here, heavily involved in the Artemis program and Mars missions. L3Harris (LHX) is also a key engine supplier after acquiring Aerojet Rocketdyne. Voyager Technologies is the newest pure-play option after their IPO in June 2025. They're working on the Starlab space station with Airbus. Just be careful with the volatility here. While the growth potential is there, these companies are sensitive to earnings misses and macro issues. The pure-play stocks are riskier than the established defense contractors.