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The second decade of fast radio burst (FRB) astronomy has started at pace, with detections of tens of new FRBs from newly operational facilities such as ASKAP and CHIME. Evan Keane looks forward to the upcoming years and the discoveries they will bring.
General relativity underwent a conceptual transformation after World War II that can be used to understand the hitherto vaguely defined ‘renaissance of general relativity’, which led to the prediction and eventual discovery of gravitational waves.
A review of the various techniques to obtain photometric redshifts, from template-fitting to machine learning and hybrid schemes, and a description of the latest results on extragalactic samples and how survey strategy choices impact redshift accuracy.
The Antikythera Mechanism is the oldest known mechanical calculator. Imaging reveals its solar and lunar astronomical functions, and deciphering its extensive inscriptions shows that it displayed the shifting position of the planets in the zodiac.
