People visit Herrnhuter Sterne GmbH manufacturing, a Christmas stars manufacturing company in Herrnhut, Germany, Nov. 10, 2025. (AP Photo/Ebrahim Noroozi) HERRNHUT, Germany — Bright Christmas stars ...
Not all stars shine brightly all the time. Some have a brightness that changes rhythmically due to cyclical phenomena like passing planets or the tug of other stars. Others show a slow change in this ...
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