Instant Expert: Cosmology

12:14 04 September 2006 by Stephen Battersby (Image: NASA) Cosmologists study the universe as a whole: its birth, growth, shape, size and eventual fate. The vast scale of the universe became clear in the 1920s when Edwin Hubble proved that “spiral nebulae” are actually other galaxies like ours, millions to billions of light years away.

Instant Expert: Cosmology Read More »