The $8 million PandaX (Particle and Astrophysical Xenon) dark-matter experiment -- which lies 7,874 feet (2,400 meters) underground, inside a mountain made of marble -- will be up and running early this year.
The $8 million PandaX (Particle and Astrophysical Xenon) dark-matter experiment -- which lies 7,874 feet (2,400 meters) underground, inside a mountain made of marble -- will be up and running early this year.