Finding the ages of things in astronomy is hard. While it is undoubted that the properties of objects change as they age, the difficulty lies in that the initial parameters are often so varied that, for most cases, finding reliable ages is challenging. There's some tricks to do it though. One of the best ones, taught conceptually in introductory astronomy courses, is to use the "main sequence turn-off" of a cluster. Of course, applying any of these methods is easier said than done, but a new method may help alleviate some of the challenges and allow for smaller errors.(...)
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