Space on MSN15d
100 years ago, Edwin Hubble proved our Milky Way galaxy isn't alone
Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.
One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate’
Hubble’s work pushed the field of astronomy forward, starting with his paper demonstrating that some objects exist outside ...
Phys.org18d
NASA celebrates Edwin Hubble's discovery of a new universe
For humans, the most important star in the ... century Henrietta Swan Leavitt had discovered that the pulsation period of Cepheid variables is directly tied to their luminosity.
JSTOR Daily16d
Observational and Theoretical Studies of 27 δ Scuti Stars with Investigation of the Period–Luminosity Relation
The multi-color CCD photometric study of 27 δ Scuti stars is presented. By using approximately three years of photometric observations, we obtained the times of maxima and magnitude changes during the ...
EurekAlert!18d
NASA celebrates Edwin Hubble’s discovery of a new universe
In commemoration of Edwin Hubble's discovery of a Cepheid variable class star ... Swan Leavitt had discovered that the pulsation period of Cepheid variables is directly tied to their luminosity.
Times Union8d
One large Milky Way galaxy or many galaxies? 100 years ago, a young Edwin Hubble settled astronomy’s ‘Great Debate’
Nature of the nebulae In 1610, astronomer Galileo Galilei used the newly invented telescope to show that the Milky Way was composed of a huge number of faint stars. For the next 300 years ...