Skylight of underground lava tube on the Moon
Fri May 28, 2010 at 12:29 UTC
JAXA's lunar orbiter Kaguya has discovered a vertical hole on the Moon.
This hole proves the existence of an underground lava tube, which is both an important scientific object and the most suitable place for constructing a lunar base. This is because the tube's interior is protected from the impact of micrometeorites and radiation exposure while the temperature is kept constant. Read more [jaxa.jp].
