LiteBIRD is a scientific satellite project led by JAXA with the aim of launching in 2032. The project aims to conduct precise polarization observations of the cosmic microwave background (CMB) radiation across the entire sky for a period of three years.

The goal of LiteBIRD is to verify the inflationary cosmology hypothesis, which is the most plausible hypothesis describing the early universe before the Big Bang. 

In the Sakurai Laboratory, we are involved in the development of polarization modulation devices for the LiteBIRD low-frequency telescope, as well as the systematics analysis and the development of foreground removal methods.

• International collaboration mission with over 400 researchers from around the world, including Japan, the United States, Europe, Canada, and others.
• The launch is scheduled for around 2032 with a JAXA H3 rocket.
• Three telescopes covering a wide frequency range (40–402 GHz, 15 bands) for precise observations of CMB polarization.
• Observing the entire sky for three years from the Lagrange Point 2 (L2) orbit,
• The telescope focal plane will include ~5000 superconducting detectors.
• Japanese participating institutions: JAXA, the High Energy Accelerator Research Organization (KEK), the University of Tokyo, Okayama University, and the Suwa University of Science.