Kavli IPMU

Gravitational lensing has a significant effect on cosmic birefringence

A discovery of cosmic birefringence could lead the way to revealing the nature of dark matter and dark energy.

The first stars were not alone

The first quantitative constraint is based on observations of the multiplicity of the first stars.

Through gamma rays, scientists detected a small satellite galaxy filled with dark matter

The millisecond pulsars as efficient accelerators of highly-energetic electrons and positrons.

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