Item #: SCP-XXXX
Object Class: Keter
Special Containment Procedures: [Due to the nature and location of SCP-XXXX, physical containment is impossible. Current containment procedures consist of monitoring scientific outlets for all research into the existence of SCP-5138. Foundation agents are to be stationed within all high-energy observatories capable of detecting the anomaly. A worldwide network of these observatories is to remain under Foundation control. Public research into the origin of cosmic radiation with energy exceeding 5×10^19 eV is to be discouraged. ]
Description: [A bubble of False Vacuum is discovered in the local universe, expanding at a significant percent of light speed, and there is evidence to suggest that the universe is full of them. Metastability of the Further research finds that these bubbles have existed and propagated for some time, having begun nucleation during the end of the Photon Epoch, between 250,000 and 100,000 years prior to Recombination, their presence accounting for small anisotropies in the CMB. Having gone unnoticed for decades of observation due to their difficulty of detection and inherent horizon-like censorship, the boundaries that are possible to directly observe are only visible on the largest scales and at very high redshifts, and therefore UHECR mapping is the preferred method for observation. Discovery and measurement of the boundaries indicating the surface or “walls” of these bubbles is primarily done through the detection of Ultra-high-energy cosmic rays(UHECRs), Ultra-high-energy gamma rays, and Extreme-energy cosmic rays(EECRs). A number of ground and orbital observatories are dedicated to mapping the sources of these events. A civilian astrophysical team, in a 1998 paper, proposed that hypothetical “true vacuum” bubbles created through tunneling to an electro-weak ground state, would release massive amounts of energy as matter engulfed by its “surface” tunneled down to its rest state that would manifest as bursts of extremely high energy radiation, principally UHECRs, EECRs, and Ultra-high-energy gamma rays. Transition of matter-field density would allow massive particles (>100GeV) to form at the boundaries and exist for a short while before decaying. Detection of their unique decay signatures would form a viable method of distinguishing sources from background, as very few known astronomical phenomena are capable of producing such massive particles in number. ]
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