An overview of silver sphere unidentified anomalous phenomena examines a wide range of speculative propulsion ideas—from magnetohydrodynamic and Lorentz-force concepts to gravitoelectromagnetic, negative-mass, quantum vacuum, warp-drive, an… #aliens #apr2026 #newspaceeconomy #ovni #uap #ufo #ufosky https://newspaceeconomy.ca/2025/02/16/hypothetical-propulsion-mechanisms-for-uaps-of-the-silver-sphere-type