“Second Moon” May be Lost Soviet Probe, Scientists Suggest
A small celestial body, designated 2025 PN7 and briefly captured in Earth’s orbit, has sparked debate among astronomers. Initial observations lead to its nickname, “second Moon,” but new research suggests it might potentially be a relic of the early Space Race – specifically, the Soviet Union’s Zond 1 mission launched in 1964.
Lost and Found in Space?
The Zond 1 probe experienced technical difficulties shortly after launch, resulting in a loss of communication.Though, a recalculation of the mission’s trajectory by researchers indicates the probe may not have been lost to deep space, but rather entered an orbit around the Sun, only to be rediscovered decades later. This hypothesis is being led by a Harvard University astronomer and engineer Adam Hibberd of the Initiative for Interstellar Studies.
Confirming this theory requires further investigation. Scientists propose conducting spectral analysis of 2025 PN7 to determine its surface composition. This will help differentiate between a natural asteroid or meteorite and materials consistent with a man-made spacecraft.
Precedent for Space Debris Identification
This isn’t the first time a mysterious object in Earth’s orbit has been identified as space debris. In 2020, astronomers initially detected an object named 2020 SO. Subsequent analysis confirmed it was a component of NASA’s Surveyor 2 lunar mission, launched in 1966, demonstrating the feasibility of identifying old spacecraft parts through orbital mechanics and material analysis. Space.com details the 2020 SO identification.
The identification of 2025 PN7 as Zond 1, if confirmed, would offer a unique opportunity to study a piece of early Soviet space technology and refine our understanding of the challenges and successes of the initial era of space exploration.