Astronomy on MSN
What is the origin of the letters used in star classification?
What is the origin of the letters used in star classification? Why didn't astronomers use ABCD? J. HaldimanChicago, Illinois ...
The Brighterside of News on MSN
Runaway stars within the Milky Way may reveal dark matter’s hidden structure
Astronomers have chased hypervelocity stars for more than a century. These rare objects move so fast that the Milky Way ...
Stellar spectral types originally followed alphabetical order. But as astronomers observed more stars and obtained more detailed spectra, they consolidated some categories and reordered the remaining ...
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