एपि. 13: भूविज्ञानी गर्म झरने के होटल का दौरा करते हैं और छत के धूल में ब्रह्मांडीय गोलाणु खोजते हैं।

13

The geologists visit a classy hot-spring hotel. A white stone ring proves to be lime from the spring deposited in a pipe. Nagi speaks of career opportunities for geologists. At night they watch for shooting stars. Nagi reveals that rooftop dust may contain micrometeorites that can be harvested with a magnet. With the aid of a microscope, they find a cosmic spherule. Ruri reflects on the fun of scientific discovery and looks forward to more. (Source: Wikipedia)