Karl Terzaghi reached out to Laurits Bjerrum in 1954, impressed by his paper on Norwegian quick clays' stability. At 36, Bjerrum, already a PhD and NGI director, emphasised practical research integration, influenced by centres like Imperial College London. He advocated for soil mechanics in civil engineering education and founded its chair in 1960. Bjerrum left a lasting legacy, earning international acclaim for his NGI work and collaborations with geotechnicians like Terzaghi and Casagrande.

In December 2021, the agonic line crossed the Royal Observatory of Madrid on its westward drift. The previous crossing by the agonic line, drifting eastward, is not accurately dated because declination measurements of that time are scarce. After collecting the data obtained in the Iberian Peninsula over the last 500 years and reducing them to ROM coordinates, a geomagnetic declination curve was generated. As a result, the previous cross ing been the agonic line was dated around the year 1652.

The meteorite "Veramin" fell in Persia ca. 1880. In the records, there are ambiguities about the event and the available sources were scrutinized in this review. The current official name, coined by meteoricist A. Brezina, is not supported by Iranian sources. A key document is a rediscovered label with the main mass of the meteorite. The indicated place of the event, probably occurring in February–April 1880, is Booghin of in the historical Zarand district, 100 km NW from Veramin (Varamin).

This paper reports a few anecdotes from the life of Paul J. Crutzen that were contributed by friends and colleagues. Taken together, these anecdotes should shed some light on the person that Paul was, as this is perhaps sometimes obscured when focusing solely on his many scientific achievements.

This article collects and analyzes reports of auroras published in the Extremadura newspaper from 1923 to 2017. We identified 31 news items describing these events, including major auroras in 1926, 1938, 1957, and 1991. This research highlights the value of newspapers in reconstructing past solar activity.

This study reveals that a vast ancient lake once covered parts of central Iran, influencing regional culture and settlement. By analyzing old texts, maps, and environmental data, the research reconstructs the lake's size, timeline, and role in history. The findings suggest the lake lasted thousands of years before drying up due to climate shifts, offering new insights into how landscapes shaped early civilizations.

Point discharge is an electrical process which occurs naturally in Earth's atmosphere. Like lightning, it has been observed both directly and indirectly for centuries. Several of the milestone investigations in atmospheric electricity have arisen through measuring point discharge. This work gives a history of various investigations involving the phenomenon and explains its central role in developments in atmospheric electricity.