section_path: Launch vehicles/Antares 300
section_name: Antares 300
paragraph_text: Antares 300
  
  Firefly is a subcontractor for the Northrop Grumman Antares series 300, providing the first stage, which consists of a de-rated Eclipse first stage. The second stage is carried over from the previous Antares 230+. Wallops LP-0A is being retrofitted to support the new, larger, more powerful first stage. In April 2024, the company announced testing was occurring on the Antares 300.