askscience

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As the universe continues to expand, is it "seeding" (for lack of a better term) matter behind its boundary or only expanding empty space?	7
People living closer to the equator are spinning with the earth much faster than those living closer to the poles. (1) what is the scientific explanation for why we don't notice and (2) are there any biological effects created by this difference?	4
I just read an article on the current Ebola virus outbreak in West Africa, the deadliest ever. Field researchers of high-mortality infectious diseases, can you share some of your experiences? What's it like to go into a Hot Zone? Why do you do it? What's it like for your family?	1
Why does getting some things wet (e.g. like a paper towel or piece of cardboard) make them more easily torn?	1
Does the existence of black holes suggest that gravitational effects are/can be "faster" than light, since light cannot escape their pull?	1
I read that humans share 44% of their genetic makeup with cabbage. How much more would we have to share to gain energy from photosynthesis?	1
In two months my son will be born. Given recent medical science advances, should my wife and I ensure that some of his stem cells are saved for future medical treatments for him? If not, how can we ensure they are donated and used to treat someone else?	1
What scientific principles or well-established theories have the most disturbing or interesting implications/consequences for humanity?	1
Why did humans evolve to have offspring that take several years to become self-sufficient while so many other animals have young that can survive on their own after a much shorter time?	1
Why does the human diet generally involve cooked or otherwise altered foods when no other species seem to have analogous processes for their diets? And what theories are there for why we developed this way in the first place?	1

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