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Long term observations of blazar TXS 0506+056 show no detections in very high energy (VHE) gamma rays. However the source displays clear variability in other parts of the electromagnetic spectrum (gamma, x-ray, optical).
Astronomers led by Byeong-Cheol Lee have made a groundbreaking discovery, detecting a brown dwarf orbiting the red giant HD 18438. With a radius of 89 times that of the Sun, HD 18438 is now the largest known star to be orbited by an exoplanet or brown dwarf.