On 17 December, in the Atacama Desert in northern Chile, representatives from the Cherenkov Telescope Array Observatory (CTAO), the European Southern Observatory (ESO), and governmental authorities gathered to celebrate the official groundbreaking of the CTAO’s southern site, CTAO-South. After years of successful site preparations, the event marked the beginning of construction on the telescope foundations, paving the way for the first telescopes of the first and largest gamma-ray observatory in the southern hemisphere.

With the advancement of Internet applications, the global demand for broadband satellite communication services is incessantly escalating. Furthermore, there exists an exponential surge in the requisition for the capacity of satellite communication systems. In response to this evolving demand, the domain of satellite communication technology is progressively evolving toward the realm of high-throughput satellite (HTS) communication systems. The typical technical characteristics of HTS are: (a) the satellite adopts multibeam technology for beam overlapping coverage of the service area, which improves the quality of the wireless link while realizing the spatial dimension segmentation; (b) based on this, the system adopts multiple frequency multiplexing to improve the communication capacity of a single satellite; (c) the gateway station is tightly coupled with the user beam clusters are tightly coupled to complete 2-hop communication, which makes multiple gateway stations share the communication resources of the same satellite, forming a spatial isolation of the gateway stations, and once again realizing the frequency multiplexing of the gateway station links. A key requirement for future multibeam broadband satellite communication systems is the ability to flexibly adjust beam capacity according to changes in business distribution, in order to meet time-varying business requirements. Beam hopping technology provides an efficient solution to achieve the efficient use of frequency resources and power resources. At the same time, the use of beam hopping makes the beam hopping of satellite payload need to match the business signals of ground signal stations, bringing about the need for synchronization of beam hopping between satellite and ground.

TAMEST (Texas Academy of Medicine, Engineering, Science and Technology) has announced Maralice Conacci-Sorrell, Ph.D., Associate Professor, Department of Cell Biology at UT Southwestern Medical Center, as the recipient of the 2026 Mary Beth Maddox Award and Lectureship in cancer research. She was chosen for her pioneering research revealing how cancer cells harness nutrients to drive their growth and for creating targeted strategies to suppress otherwise untreatable cancers.

AI and plants: Using a new AI method, researchers from the University of Copenhagen have rediscovered 51 old pea varieties that are no longer used in agriculture but may prove promising for the production of plant-based foods. The method is a shortcut to finding new resources in the green treasure troves that gene banks' enormous seed collections represent.