investigation (esp. in academic and scientific contexts); finding out the facts; bringing (a matter) to light; inquiring into
事故の原因究明が進められている。
The investigation into the cause of the accident is underway.
真相の究明には時間がかかるだろう。
It will likely take time to get to the bottom of the truth.
科学的手法で現象の究明に取り組んだ。
They worked to investigate the phenomenon using scientific methods.