Today, Mars has 0.006 atm thin atmosphere, on the other hand, 4 billion years ago it had ticker atmosphere, with the pressure of over 5 atm. (Kurokawa et al., 2017).   ” Where and how was the ancient thick Martian atmosphere lost? “ and ” What is it like today ? “ are the important topics in the Martian research.   The ratios of isotopes are considered significant parameters in comprehending the indications of atmospheric evolution and circulation, as they change only by limited processes.   The current Martian atmosphere consists mostly of CO2, accounting for over 95%, and the...

April 29, 2023 We went to “Planetospheric Zao Observatory” to pick wild vegetables and have a barbecue with all the members of the Department of Geophysics, C region.   Under a blue sky, we are surrounded by nature and pick wild vegetables, DSC_1150 ate the wild vegetables as tempura, had a barbecue and enjoyed ourselves a lot.   Finally, we took a group photo. In fact, this event has not been held due to the covid in almost 4 years. We are happy to see the return of this wonderful event. Everyone was full of smiles and it was a...