As far as we know, the planet Earth is a unique environment (especially for life). When and how were the Earth and other planets formed in the entire universe?
To decipher the history of the Earth, we focus on the origin, evolution
and current environment of our solar system based on various experimental
approaches. Mainly, we carry out precise isotopic analyses from hydrogen
to uranium in Apollo samples, Martian meteorites, other various meteorites
and circum-stellar dusts. We also conduct the studies on the organic matter
in planetary materials. For better understanding of the magnetic structure
of the primordial solar nebula, the magnetic properties of magnetic &
weak magnetic planetary materials are examined. We are also investigating
electron spin resonance and the relation between environmental electromagnetic
field and natural phenomena.