# Cosmos 666
**Wikidata**: [Q13566894](https://www.wikidata.org/wiki/Q13566894)  
**Source**: https://4ort.xyz/entity/cosmos-666

## Summary
Cosmos 666 was a Soviet satellite launched on July 12, 1974, using a Voskhod rocket from the Plesetsk Cosmodrome. It was part of the Zenit-4MK class and carried the COSPAR ID 1974-053A. The mission marked a significant event in Soviet space exploration, though specific details about its payload or objectives remain limited.

## Key Facts
- **Launch Date**: July 12, 1974
- **Launch Vehicle**: Voskhod (Soviet Union)
- **Launch Site**: Plesetsk Cosmodrome Site 43/4
- **COSPAR ID**: 1974-053A
- **Class**: Zenit-4MK
- **Country of Origin**: Soviet Union
- **Significant Event**: Rocket launch at 12:50:01 UTC on July 12, 1974
- **Aliases**: Kosmos 666
- **Wikipedia Availability**: Available in Macedonian, Serbo-Croatian, and Serbian

## FAQs
### Q: What was the purpose of the Cosmos 666 mission?
A: The exact purpose of Cosmos 666 remains unclear, as detailed mission objectives are not publicly documented. It was part of the Soviet Kosmos satellite program, which included military and scientific missions.

### Q: Which rocket was used to launch Cosmos 666?
A: The mission was launched using a Voskhod rocket, a Soviet launch vehicle developed for crewed and uncrewed space missions.

### Q: Where was Cosmos 666 launched from?
A: The satellite was launched from Plesetsk Cosmodrome Site 43/4, a key facility for Soviet space operations.

### Q: What is the COSPAR ID for Cosmos 666?
A: The COSPAR ID for Cosmos 666 is 1974-053A, assigned by the Committee on Space Research.

### Q: Is there a Wikipedia page for Cosmos 666?
A: Yes, Wikipedia entries for Cosmos 666 exist in Macedonian, Serbo-Croatian, and Serbian.

## Why It Matters
Cosmos 666 represents one of many Soviet-era satellite missions, contributing to the broader Kosmos program, which included both military and scientific payloads. While the exact details of its mission are not widely documented, it reflects the Soviet Union's efforts to expand its space capabilities during the Cold War. The launch from Plesetsk Cosmodrome highlights the strategic importance of this site in Soviet space operations. The mission, like others in the Kosmos series, likely involved testing new technologies or conducting reconnaissance, aligning with the Soviet space program's dual military and scientific objectives.

## Notable For
- **Zenit-4MK Classification**: One of the few satellites in the Zenit-4MK class, indicating its role in a specific series of Soviet satellites.
- **Voskhod Launch Vehicle**: Launched aboard a Voskhod rocket, a vehicle known for its reliability in both crewed and uncrewed missions.
- **Plesetsk Cosmodrome Launch**: Originated from Site 43/4, a critical launch pad for Soviet space missions.
- **COSPAR ID**: Assigned 1974-053A, a standard identifier for space objects in the Committee on Space Research database.
- **Limited Public Documentation**: Unlike some other Kosmos missions, Cosmos 666 lacks extensive public records, emphasizing the classified nature of Soviet space activities.

## Body
### Mission Overview
Cosmos 666 was launched on July 12, 1974, at 12:50:01 UTC from Plesetsk Cosmodrome Site 43/4. The mission was carried out using a Voskhod rocket, a Soviet launch vehicle with a history of both crewed and uncrewed flights. The satellite was classified under the Zenit-4MK series, indicating its role in a specific category of Soviet satellites.

### Technical Specifications
- **Launch Vehicle**: Voskhod (Soviet Union)
- **Launch Site**: Plesetsk Cosmodrome Site 43/4
- **COSPAR ID**: 1974-053A
- **Class**: Zenit-4MK
- **Aliases**: Kosmos 666

### Context and Significance
The mission is part of the broader Kosmos satellite program, which included both military and scientific payloads. The Soviet Union's space program during the Cold War prioritized technological advancement and strategic reconnaissance. Plesetsk Cosmodrome, particularly Site 43/4, played a crucial role in these operations, facilitating numerous launches.

### Documentation and Availability
While Cosmos 666 lacks extensive public documentation, it is referenced in academic and institutional sources, including the Committee on Space Research (COSPAR) and the Wolfram Language entity database. Wikipedia entries exist in Macedonian, Serbo-Croatian, and Serbian, indicating its regional interest. The mission's classification suggests it may have involved sensitive or military-related objectives, typical of the Kosmos program.

## References

1. Jonathan's Space Report