It's been 100 years since we learned the Milky Way is not the only galaxy
On Sunday November 23, 1924, 100 years ago this month, readers perusing page six of the New York Times would have found an ...
TwinCities.com25 天
Skywatch: Go the distance with the Andromeda Galaxy
Cepheid variable stars vary in size and brightness over a period ... did most of the labor-intensive legwork. The Andromeda Galaxy and the Milky Way Galaxy are on a collision course.
Mena FN14 天
It's 100 Years Since We Learned The Milky Way Is Not The Only Galaxy
These objects were actually the Andromeda and Messier 33 galaxies ... the distance to his Cepheid exceeded Shapley's size for the Milky Way. Over subsequent months, Hubble examined other spiral ...