# Cosmos 125
**Wikidata**: [Q12753183](https://www.wikidata.org/wiki/Q12753183)  
**Source**: https://4ort.xyz/entity/cosmos-125

## Summary
Cosmos 125 was a Soviet nuclear-powered surveillance satellite launched on July 20, 1966, as part of the US-A series. It was launched from the Baikonur Cosmodrome using a Soyuz/Vostok rocket, marking a significant milestone in the Soviet Union's space surveillance capabilities.

## Key Facts
- **Launch Date**: July 20, 1966
- **Launch Vehicle**: Soyuz/Vostok
- **Launch Site**: Baikonur Cosmodrome Site 31
- **Satellite Class**: US-A (Soviet nuclear-powered surveillance satellite series)
- **COSPAR ID**: 1966-067A
- **Wikipedia Availability**: Available in Hungarian, Macedonian, Polish, Serbo-Croatian, and Serbian
- **Wolfram Language Entity Code**: Entity["Satellite", "02351"]

## FAQs
### Q: What was the purpose of Cosmos 125?
A: Cosmos 125 was a Soviet nuclear-powered surveillance satellite designed to monitor military and strategic activities from space.

### Q: Which rocket was used to launch Cosmos 125?
A: The satellite was launched using a Soyuz/Vostok rocket from the Baikonur Cosmodrome Site 31.

### Q: When was Cosmos 125 launched?
A: Cosmos 125 was launched on July 20, 1966, at 08:58:00 UTC.

### Q: What is the COSPAR ID of Cosmos 125?
A: The COSPAR ID for Cosmos 125 is 1966-067A.

### Q: In which languages is information about Cosmos 125 available on Wikipedia?
A: Information about Cosmos 125 is available on Wikipedia in Hungarian, Macedonian, Polish, Serbo-Croatian, and Serbian.

## Why It Matters
Cosmos 125 was a pivotal development in the Soviet Union's space program, particularly in the realm of nuclear-powered surveillance satellites. As part of the US-A series, it demonstrated the Soviet Union's capability to deploy advanced reconnaissance technology in orbit. The satellite's launch marked a significant step in the Cold War-era space race, contributing to the Soviet Union's efforts to monitor military activities and maintain strategic superiority. Its successful deployment underscored the Soviet Union's technological advancements in space-based surveillance, which had implications for national security and military intelligence.

## Notable For
- **First Nuclear-Powered Surveillance Satellite**: Cosmos 125 was one of the first Soviet satellites to utilize nuclear power for surveillance purposes.
- **Part of the US-A Series**: It was classified under the US-A series, indicating its role in the Soviet Union's nuclear-powered satellite program.
- **Soyuz/Vostok Launch**: The satellite was launched using the Soyuz/Vostok rocket, which was a key vehicle in the Soviet space program at the time.
- **Baikonur Cosmodrome Launch**: The launch took place from Baikonur Cosmodrome Site 31, a major site for Soviet space missions.
- **COSPAR ID**: The satellite's COSPAR ID (1966-067A) is a unique identifier in the international space community.

## Body
### Overview
Cosmos 125 was a Soviet nuclear-powered surveillance satellite launched on July 20, 1966, as part of the US-A series. It was launched from the Baikonur Cosmodrome Site 31 using a Soyuz/Vostok rocket.

### Technical Specifications
- **Satellite Class**: US-A
- **Launch Vehicle**: Soyuz/Vostok
- **Launch Site**: Baikonur Cosmodrome Site 31
- **Launch Time**: 08:58:00 UTC

### Identification
- **COSPAR ID**: 1966-067A
- **Wolfram Language Entity Code**: Entity["Satellite", "02351"]

### Wikipedia Availability
- **Languages**: Hungarian, Macedonian, Polish, Serbo-Croatian, Serbian

### Significance
Cosmos 125 played a crucial role in the Soviet Union's space surveillance capabilities, contributing to its military and strategic monitoring efforts during the Cold War. Its successful deployment highlighted the Soviet Union's technological advancements in nuclear-powered satellite technology.

## References

1. Jonathan's Space Report