Topic: Edwin Hubble
Don't have the necessary solar filters to watch the transit of Venus? Instead of staring directly at the sun, try watching it on the Web.
Milton Humason, a high-school dropout who worked as a mule driver and then a janitor at the Mount Wilson Observatory in California, worked his way up to become the assistant of Edwin Hubble, whom he helped to study the spectral redshift of hundreds of galaxies.
05/19/2010 12:53 pm
Scientists have found that dark energy, the force thought to be accelerating the expansion of the universe, may be doing the same thing to local groups of galaxies. That bolsters Einstein's idea of a 'cosmological constant.'
01/06/2010 05:47 pm
New Hubble telescope images provide a look at the cosmos when it was just 600 to 800 million years old. Galaxies from this period might have helped transform the universe from dark to light.
01/05/2010 03:27 pm