University of Cape Town researchers have discovered that the 2023-2024 El Niño triggered the largest sea level surge ever recorded across Africa's marine domains. A rare convergence of climate patterns amplified the event, causing sea levels to rise faster than the global average and placing over 15 million coastal residents at heightened flood risk. The study is published in Communications Earth & Environment.

Swarms of pico-satellites could work together as a single large antenna for direct-to-smartphone communications, as reported by researchers from Japan. Instead of relying on a single large satellite with a phased-array antenna, the team showed that pico-satellites orbiting Earth in formation could each carry individual phased-array elements and be synchronized wirelessly. The proof-of-principle experiment demonstrated reliable, high-quality data transmission, paving the way for cheaper, more reliable network coverage worldwide.

A new artificial intelligence framework helps turn long-running multispectral satellite records into hyperspectral ocean color data, opening the door to longer and more detailed studies of marine ecosystems.

Future lunar missions may rely on a fibre-optic cables to assess vital sub-surface structures. Researchers at ETH Zurich are investigating whether lightweight optical fibres – like those used for internet communication on Earth – could be deployed on the Moon to detect seismic activity and reveal its interior structures.

A Dartmouth study reports a technique for creating detailed landscape maps of what students know based on their performance on short multiple-choice quizzes. The researchers’ mathematical framework could be used to power a new generation of personalized AI tutors that can identify what individual students do and do not understand, then customize feedback to improve learning. The researchers released a public demo where users can construct an interactive map of their knowledge.