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Item#: 7117
Containment Class:
Secondary Class:
Disruption Class:
Risk Class:

Special Containment Procedures: Not enough is known about SCP-7117 to devise proper containment procedures. Primary containment efforts are to encompass gathering information about the anomaly to determine:

  • its nature,
  • whether containment efforts are possible,
  • whether containment efforts are practical,
  • whether containment efforts are desired.

Description: SCP-7117 is a hypothesized stochakinetic1 effect impacting the development of human civilizations. Its most prominent feature is the oscillation of the primary stellar object inhabited by those affected — alternating between Earth and Mars over periods of roughly 100'000 years.

This planetary migration is accompanied by the collapse of human society and the deterioration of its technological capabilities to those of the pre-Neolithic period. Said deterioration typically takes place immediately after the migration concludes, although it must be noted that advanced inner-system vessels are used in the endeavour. This is followed by the loss of historical evidence pointing toward the existence of the society which perpetrated it, creating an illusion that humans have naturally evolved on the target planet.

The secondary effect of SCP-7117 is its impact on spacefaring efforts tasked with moving human subjects beyond the Sol system. Such efforts inevitably fail due to the aforementioned stochakinetic effect through equipment malfunctions and health complications. All precautionary methods developed when accounting for the properties of SCP-7117 do not nullify its effect.


Timendi causa est nescire

PHOBOS was the first Foundation-sponsored spacefaring program since the Lunar Containment Initiative of 1902. The aim of PHOBOS was the establishment of outer-system research outposts to serve as listening stations as well as a potential impetus for containment efforts outside of the Sol system.

Unofficially, the PHOBOS program was used to expand the Foundation's evacuation capabilities in the event of an XK-Class End of the World scenario that would have rendered the Sol system uninhabitable. In such an event, selected 500-800 human subjects were to be transferred to the established colonies in order to repopulate. Drafts for the future terraformation of selected planets as well as post-XK scenario Earth were considered but ultimately deemed infeasible.

The program was put on hold after the effect of SCP-7117 was verified in 2008.

PHOBOS Program Mission Log

Mission ID Vessel Date Purpose Results
PHOBOS-I Utu2 ██/01/1954 The delivery of PHOBOS-I to its predetermined location through the use of unmanned long-range space drones. PHOBOS-I was successfully delivered. The vessel is ready for housing human subjects.
PHOBOS-II Inanna3 ██/12/1967 The transportation of 12 subjects to permanently inhabit PHOBOS-I. CO₂ removal systems began failing as the vessel approached the Oort cloud. Despite repair attempts, the crew perished from asphyxiation.
PHOBOS-III Enlil4 ██/09/1972 The conduction of a manual checkup on PHOBOS-I and recovery of PHOBOS-II for analysis. Cpt. Sarr suffered a cerebral haemorrhage a few seconds after PHOBOS-III entered the Oort cloud. It should be noted that mandatory health checks were performed before the mission and Cpt. Sarr was not found to be susceptible to the condition.
PHOBOS-IV Nabu5 ██/04/1990 The delivery of a cryopreserved research crew to the Alpha Centauri system. Communication with the crew of PHOBOS-IV was cut as the vessel entered the Oort cloud. The communication was eventually re-established, but the vessel sustained damage from an unknown source and its systems — including the autopilot — were beyond repair. Although unconfirmed, it is highly probable that the crew perished from several viable causes, ranging from sudden pod depressurization to muscle dystrophy.
PHOBOS-V Vera6 ██/09/2003 Determining the existence of an anomalous phenomenon disturbing the progress of the PHOBOS program. All biological functions of D-3012 ceased after the subject entered the Oort cloud. The vessel's vital scanners confirmed that a spontaneous reaction between the side-chain of haemoglobin, carbon dioxide, urea, and sanguinium7 in presence of a magnesium catalyst took place in the aorta of D-3012. The product was an anomalous compound capable of terminating the subject in an absence of a viable biochemical pathway.

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