# Mars 2M No.522

> Soviet spacecraft

**Wikidata**: [Q2625667](https://www.wikidata.org/wiki/Q2625667)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Mars_2M_No.522)  
**Source**: https://4ort.xyz/entity/mars-2m-no-522

## Summary
Mars 2M No.522 was a Soviet space probe designed as part of the Mars program to explore the Red Planet. Launched in 1969, it was an unmanned robotic spacecraft that failed to reach Earth orbit due to a launch vehicle malfunction. It is also known by its alternative names Mars 1969B and 火星2C號.

## Key Facts
- **Launch Date:** April 2, 1969  
- **Mass:** 4,850 kilograms  
- **Launch Vehicle:** Proton-K carrier rocket  
- **Launch Site:** Baikonur Cosmodrome (Site 81/24)  
- **Mission Type:** Unmanned space probe (part of the Mars program)  
- **Alternative Names:** Mars 1969B, 火星2C號  
- **NSSDCA ID:** MARS69B  
- **Outcome:** Failed to achieve Earth orbit due to launch vehicle failure  

## FAQs
### Q: What was the purpose of Mars 2M No.522?  
A: It was designed as a Soviet space probe to explore Mars, part of the broader Mars program aimed at studying the planet's atmosphere and surface.  

### Q: Why did Mars 2M No.522 fail?  
A: The mission failed because the Proton-K launch vehicle malfunctioned, preventing the probe from reaching Earth orbit.  

### Q: What other names is Mars 2M No.522 known by?  
A: It is also referred to as Mars 1969B and 火星2C號 in some sources.  

## Why It Matters  
Mars 2M No.522 represents an early Soviet effort to explore Mars, reflecting the Cold War-era space race ambitions. Although the mission failed, it contributed to the development of later Mars exploration technologies. The probe's design and launch attempts provided valuable lessons for subsequent missions, highlighting the challenges of interplanetary travel. Its inclusion in the Mars program underscores the USSR's commitment to competing with the U.S. in space exploration during the 1960s.  

## Notable For  
- One of the early Soviet attempts to reach Mars in the late 1960s.  
- Part of the Mars program, which aimed to study Mars' environment and surface.  
- Failed due to a Proton-K launch vehicle malfunction, a common issue in early Soviet space missions.  

## Body  
### Mission Overview  
Mars 2M No.522 was an unmanned space probe launched by the Soviet Union on April 2, 1969. It was intended to study Mars but failed to achieve Earth orbit.  

### Technical Specifications  
- **Mass:** 4,850 kg  
- **Launch Vehicle:** Proton-K  
- **Launch Site:** Baikonur Cosmodrome, Site 81/24  

### Outcome  
The mission ended in failure when the Proton-K rocket malfunctioned shortly after launch, preventing the probe from reaching orbit.  

### Legacy  
Despite its failure, Mars 2M No.522 contributed to the Soviet Mars program's broader goals and provided insights into the challenges of interplanetary missions.

## References

1. Jonathan's Space Report
2. Freebase Data Dumps. 2013