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Continuous video of black hole radio observations challenges shock wave theory

For years, scientists have relied primarily on radio imaging from techniques like very long baseline interferometry (VLBI) to study jets from the active galactic nuclei of supermassive black holes. This allows for the detection of broad, unresolved features, called components, moving at what appear to be faster-than-light speeds. However, traditional imaging has poor resolution and treats each observation as a separate snapshot in time, limiting information about how the features move.

Phys.orgPhys.org10 Sept

Report maps pathways for accelerating environmental solutions through positive tipping points

New research from The Earthshot Prize and the University of Exeter's Green Futures Solutions team, published today, reveals 51 environmental solutions that can trigger rapid, transformative change to repair our planet within the next five years. After a northern summer of extreme heat and fire, and as the world prepares for an unprecedented El Niño, the research provides a new, unifying agenda for positive action.

Phys.orgPhys.org10 Sept