Commission H led a joint session with Commissions E and G at the 2022 AT-AP-RASC meeting entitled "Meet the Experts." The session was designed especially to give early career scientists an opportunity to hear the career perspectives from three established researchers in their respective fields. Each expert gave a 20 minute presentation about their experiences and thoughts on the present state of the field, as well as where the future of the research field is headed. The formal presentations were then followed by an hour of questions from the audience.

This will be my very last WIRS Column in the Radio Science Bulletin. I feel a little bit sad to leave this platform, but I am also happy to see that the work continues in a much broader front such as WIRS Chapters in different countries and WIRS events and sessions on several URSI meetings. Still, we have a lot of work do to.

The latest editions of the James Clerk Maxwell Foundation's Newsletter are now available. Issue No. 17 contains an article by Dusa McDuff and David Forfar, "Some Advances in Pure Mathematics Made in the 19th Century." Issue No. 18 contains an article by Naomi C. Robertson, "An Introduction to Black Holes." The issues are available for free at: https://clerkmaxwellfoundation.org/Newsletter_2022_Summer_V17.pdf https://clerkmaxwellfoundation.org/Newsletter_2022_Summer_V18.pdf.

Using the plasma wave characteristics and remote sensing technology, the k-vector direction of plasma waves can provide important information for understanding the global features of space plasma. In this study, we proposed a Bayesian k-vector estimation method in magnetized cold plasma based on the wave distribution function method. The proposed method can be applied to various types of sensors with easy visualization and calculation of the estimation accuracy. We verified the effectiveness of the proposed method through simulations.

Robert K. (Bob) Crane passed in Newport, NH, on November 30, 2022, at the age of 86. Nature lover, outdoorsman, history buff, and radio propagation researcher extraordinaire, Bob contributed to the scientific community with a remarkable breadth of experimental and theoretical studies in ionospheric and tropospheric radio propagation, within a variety of professional venues. Among his affiliations were the Mitre Corporation, MIT Lincoln Laboratory, Environmental Research & Technology, Dartmouth College's Thayer School of Engineering, and the University of Oklahoma (where he attained Professor Emeritus status in both electrical engineering and meteorology). Among many professional distinctions, he was an IEEE Life Fellow and a certified consulting meteorologist of the American Meteorological Society.

This special issue is a collection of papers by university students who successfully applied for the Student Paper Competition organized at the 2022 URSI-Japan Radio Science Meeting (URSI-JRSM 2022). The conference was held at Chuo University, Tokyo, Japan, on September 1-2, 2022 (http://www.ursi.jp/conference/jrsm2022/).

The health and safety implications of fifth-generation (5G) cellular-communication technology have been under scrutiny while the rollout is well underway worldwide. Advocates of 5G mobile technology hail 5G as a faster and more-secure technology than its predecessor 3G and 4G systems. The major enabling infrastructure uses millimeter-wave (mm-wave) and phased-array technologies to achieve line-of-sight directivity, high data rates, and low latency. A central vulnerability or security threat is that it may allow spying on users. Nevertheless, this is a system architecture and technology or regulatory issue, but not a biological or health safety matter.