Having a good phone app is a lot of fun and quite helpful in verifying stars, asterisms, and constellations. Most apps will ...

The Hubble constant, a set number that connects a galaxy’s speed to its distance from Earth and tells us how fast the ...

But in the early 1920’s, building on the work of Henrietta Swan Leavitt and others, astronomer Edwin Hubble produced the first clear evidence that the swirling clusters visible through ...

Astronomer Henrietta Swan Leavitt is credited with creating tools to help us map the starts in the universe. Now her life story is being told in a very unique way right here in Portland through ...

But we must remember that just over a century ago - when astronomers like Henrietta Swan Leavitt, Annie Jump Cannon, and Williamina Fleming were creating and analyzing the most comprehensive star ...

Henrietta Swan Leavitt, an astronomer ahead of her time, discovered the relationship between a star’s brightness and its fluctuation period. This breakthrough allowed Edwin Hubble to measure ...

Henrietta Swan Leavitt was not famous in her lifetime. She did not win the Nobel Prize, although her name was being considered before her untimely death in 1921. Neither is it vital to this story ...

Her mentor Harlow Shapley initially urged Payne to continue the work of a computer, Henrietta Swan Leavitt, who had realized that variations in some stars’ light could be used to measure distances.

Hubble leveraged a discovery made by Henrietta Swan Leavitt 10 years earlier. She worked at the Harvard College Observatory as a ...