Astonishingly, in spite of decades of research, there is no agreed theory of cancer, no explanation for why, inside almost all healthy cells, there lurks a highly efficient cancer subroutine that can be activated by a variety of agents - radiation, chemicals, inflammation and infection. Paul Davies activateagentagree share on social
Astonishment is the root of philosophy. Paul Tillich astonishmentphilosophyroot Change image and share on social
Astrology had an important role in the ancient world. You can't understand many things unless you know something about astrology - the plays of Shakespeare and so on. Steven Pinker ancientastrologyimportant Change image and share on social
Astrology is an aesthetic affront. It cheapens astronomy, like using Beethoven for commercial jingles. Richard Dawkins aestheticaffrontastrology Change image and share on social
Astrology's a moving system that depends on where you're looking at it from on Earth. My horoscope here in London would be completely different to down in New Zealand. Eleanor Catton astrologycompletelydepend Change image and share on social
Astronautics, strictly speaking, will be concerned with voyages to other stars. Remarkably enough, to achieve such feats, we might not even have to leave the earth. It would suffice to accelerate the sun itself to a very high speed and let it drag all its planets with it. Fritz Zwicky accelerateachieveastronautics share on social
Astronauts are like these mythic legends, but really, they are just regular people, people who wear chinos. Mary Roach astronautchinolegend Change image and share on social
Astronauts are not superhuman. They lead ordinary lives and have varied personalities. Buzz Aldrin astronautleadlive Change image and share on social
Astronauts are very professional and when they're preparing for launch, they prepare for it as the most serious endeavor of our lives. Ellen Ochoa astronautendeavorlaunch Change image and share on social
Astronauts cannot pick their nicknames and can only get their nicknames from other astronauts. Any astronaut who tries to give himself a cool nickname will regret it by getting just the opposite from his astronaut friends. Michael J. Massimino astronautcoolfriend share on social
