Kimihiro Nomura

Analysis of years-long records of Earth's magnetic field has set the tightest limits on dark photons — dark matter particle candidates. Using the ionosphere as a giant resonator, scientists amplified faint magnetic fluctuations hundreds of times, but no direct signal has been found yet.

Astrophysicists have proposed a method to search for ultralight axions — dark matter candidate particles — using high-precision polarimetric observations of close binary stars. In such systems, light reflected from the companion star's atmosphere creates a weak linear polarization strictly tied to t