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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A Diagram of All the Batteries
After an unsuccessful battery search, the natural next step was of course to look up battery sizes and chart all of them.
How Much Commuting is Too Much?
One person’s long commute is another’s dream. Another person’s normal might be someone else’s nightmare. What counts as a long commute depends on where you live.
Fatal Traffic, When and Where
These are the traffic crashes that resulted in deaths in 2015, categorized by month, time of day, and factors involved.