The two keys to Edwin Hubble's breakthrough discovery were forged by others in the 1910s. The first key, the period-luminosity scale discovered by Henrietta Leavitt, allowed astronomers to calculate ...
A century ago, Edwin Hubble began the race to the edge of the cosmos Damond Benningfield In 1930, Albert Einstein met with astronomers (including Edwin Hubble, at Einstein's left, back row) at Mount ...
Join in for live views of our nearby galactic neighborhood from the dark skies at McDonald Observatory.
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback