Oct 23
The Chiron 401 planetarium system at the Yokkaichi Municipal Museum in Mie Prefecture, central Japan, has been recognized by Guinness World Records as being capable of projecting the largest number of stars in the world, the museum said Saturday. (Jiji)

Oct 22
The powerful earthquake that rattled central Tottori Prefecture on Friday originated directly below the area, just like what happened in this year’s Kumamoto quakes. (Nikkei)

Oct 22
An underground ice wall built around the crippled Fukushima Daiichi nuclear power plant has so far been unable to block the flow of groundwater entering buildings and mixing with contaminated water. (Nikkei)

Oct 21
An earthquake with a preliminary magnitude of 6.6 struck Tottori Prefecture in western Japan on Friday afternoon. The Japan Meteorological Agency is calling on people to stay alert for a possible quake of the same strength in the next week or so. (NHK)

Oct 19
Japan is lagging behind growing international moves to restrict microbeads, the tiny synthetic particles that have become a major source of pollution in the world’s oceans. (Japan Times)

Oct 18
A team of Japanese researchers has succeeded for the first time in the world in using induced pluripotent stem cells from a mouse tail to produce a large number of eggs in vitro, a study published in the British science journal Nature showed Monday. (Kyodo)

Oct 17
An earthquake with a preliminary magnitude of 5.3 jolted northeastern Japan on Sunday, the Meteorological Agency agency said. No tsunami warning was issued. (Japan Times)

Oct 12
The Tokyo Fire Department has conducted its first flight test of a drone designed for disaster response. (NHK)

Oct 11
Research data and personal information may have been stolen from a personal computer of a researcher of tritium, a radioactive isotope of hydrogen, at the University of Toyama’s Hydrogen Isotope Research Center due to cyberattacks, the university said Monday. (Jiji Press)

Oct 08
Yoshinori Ohsumi, the winner of this year’s Nobel Prize in Physiology or Medicine, sounded a warning on Friday about the present state of basic science research in Japan. (Jiji Press)