Astronomers have understood since the 1950s that the galaxy is curved, but until now, they’ve based that idea on models and indirect measurements.
Over a six-year period, the researchers took more than 100 images of the galaxy from their observatory in the Chilean Andes. In particular, they monitored 2,400 stars called classical Cepheids, a category of “young” supergiants less than 400 million years old.
Warped shape of the galaxy
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Chart-Topping Songs as Graphs and Diagrams
Dreams, hope, and most importantly, love, mixed with some parties and dranking.
Why People Move
Here are the estimates from the Current Population Survey for the most recent time segment between 2017 and 2018.