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 ...
In October 1923, Edwin Hubble utilized the 100-inch Hooker telescope to photograph the Andromeda Nebula, identifying a variable star within it. Hubble applied the known period-luminosity relationship ...
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 ...
IT IS ONE of the biggest mysteries in cosmology—and getting bigger all the time. Ever since Edwin Hubble, an American astronomer, published observations of distant galaxies in 1929, scientists have ...
More than a century ago, in a quiet corner of the Harvard College Observatory, a woman sat for hours examining tiny specks on glass photographic plates. These dots, captured from the night sky, would ...
Join in for live views of our nearby galactic neighborhood from the dark skies at McDonald Observatory.
Due to its stellar activity, the galaxy has become a favorite for astronomers using the Hubble Space Telescope. Orbiting ...
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