A century ago this month, a brash astronomer leaked a discovery that opened our view to the cosmic distance scale and the ...

It seems like almost yesterday that a teacher told me when I was very young, that the Milky Way was the very end of our ...

The Hubble constant is one of the most important numbers in cosmology because it tells us how fast the universe is expanding, which can be used to determine the age of the universe and its history. It ...

As the closest symbiotic star to Earth, R Aquarii was studied by none other than Edwin Hubble in an effort to understand the mechanism that powers the system. R Aquarii undergoes violent eruptions ...