Astronomers have discovered a unidentified object surrounded by a rotating metal cloud in the depths of spce. Scientists had been tracking a star roughly 3,000 lightyears from Earth - and noticed it ...

Abstract: In the field of remote sensing, rotating scan optical satellites are an important innovation, offering the unique advantage of capturing extensive ground coverage areas with high precision.

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Abstract: In a complex low-altitude environment, the safe takeoff and landing of uncrewed aerial vehicles (UAVs) involve the estimation of motion parameters and stability. However, during these phases ...