Exercises to Avoid. While most exercises are safe during early pregnancy, you should avoid certain activities all together. Avoid contact sports such as rugby, tackle football or wrestling during pregnancy. Additionally, stay away from activities with a high fall risk such as downhill skiing and skating.
Fred Hoyle (and others) proposed a Steady State Theory (indeed, it was good ol' Fred who is credited with creating the term 'Big Bang' - ironically, he meant it disparagingly); it pretty much disappeared once serious study of the cosmic (background) (microwave) (radiation) - CMBR, or CMB, or ... - got under way.
One of the most important figures in modern cosmology is the American astronomer Edwin Hubble. He discovered a universe of galaxies outside the Milky Way and showed that the entire universe is expanding. In the early 20th century, most astronomers believed that the universe did not extend beyond our Milky Way galaxy.