Resolution criteria

This market resolves to YES if, on or before December 31, 2030, a peer-reviewed scientific paper is published utilizing Euclid mission data (either from the official Euclid Collaboration or an independent scientific team using public Euclid data) that confirms the cosmic dipole anomaly at a statistical significance strictly greater than 5-sigma.

This market resolves to NO if:

• Euclid data is published and analyzed by the deadline, but the cosmic dipole anomaly is either not confirmed at $>5\sigma$ (e.g., it is found to be consistent with the standard cosmological model's kinematic expectation, or the measured significance is $\le 5\sigma$).

• No peer-reviewed paper analyzing the cosmic dipole anomaly with Euclid data is published by December 31, 2030.

Notes and Edge Cases:

• The "cosmic dipole anomaly" refers to the statistical mismatch between the dipole anisotropy in the large-scale distribution of distant matter (such as galaxies, active galactic nuclei, or quasars) and the kinematic dipole expected from our motion relative to the cosmic microwave background (CMB).

• Preprints (such as those posted on arXiv) will not trigger a YES resolution unless the peer-reviewed version is officially published in a recognized academic journal by the December 31, 2030 deadline.

Background

The Cosmological Principle—the foundational assumption of modern FLRW cosmology and the standard $\Lambda$CDM model—states that the universe is homogeneous and isotropic on sufficiently large scales. Under this framework, the dipole asymmetry observed in the distribution of distant matter (the "matter dipole") should perfectly align in direction and amplitude with the kinematic dipole of the Cosmic Microwave Background (CMB), which is caused by the motion of our Solar System relative to the cosmic rest frame.

However, analyses of independent all-sky catalogs of radio galaxies and mid-infrared quasars (such as NVSS, CatWISE, and RACS) have repeatedly revealed a matter dipole that is roughly 2 to 3 times larger than predicted by the kinematic CMB expectation. In recent analyses, this "cosmic dipole anomaly" has reached statistical significance levels bordering or exceeding $5\sigma$.

Because existing studies have faced scrutiny over potential observational systematics, selection biases, and sky coverage limitations, data from next-generation space missions is crucial. The ESA Euclid satellite, which is conducting a massive wide-area survey of the extra-galactic sky, is highly anticipated to provide the high-precision, low-systematic catalog required to resolve this fundamental cosmological tension.

This description was generated by AI.