A "humanist" geometric sans-serif inspired by British classics like Gill Sans. Centra No. 2:
The search for is a journey many designers take. While the exact premium version might be locked behind a paywall (typically around $30–$50 for a full family), the "Personal Use" versions found on DaFont or FontSpace are excellent for learning and prototyping.
While there is no single typeface officially named "Mars Centra," you are likely looking for one of two distinct font families: (the professional geometric superfamily) or (a display font). 1. Centra No.1 & No.2 (The Professional Choice) Designed by Josh Finklea and published through Sharp Type
The series, designed by Josh Finklea for Sharp Type , is a highly professional geometric sans-serif family.
You can download Mars Centra Font for free from various online font repositories, such as: