The content you've requested is available without charge only to active Sigma Xi members and American Scientist subscribers.
If you are an active member or an individual subscriber, please log in now in order to access this article.
If you are not a member or individual subscriber, you can:
Despite the sentimental appeal of human visits to the moon, people have only been transients in space. And yet, even their transient visits have started to demonstrate some curious biological paradoxes. For example, it is well known that an astronaut in space lose about 1 percent of the mineral density in their heel bone per month. But bone-forming cells do not show the same reduction when raised in tissue culture in space. The take-home message for our author is that biological processes that occur above the cellular cannot be predicted from the responses of their
cells or tissues alone. To start to answer questions—indeed, to know what questions to ask—biologists are sending animals into space to study the effects of microgravity on their growth and development. The author
discusses the surprising results of some of these experiments, which may have implications for the successful colonization of space someday in the future. People, says the author, will not have conquered the space environment until they can safely complete a life cycle in that setting.
Connect With Us:
An early peek at each new issue, with descriptions of feature articles, columns, and more. Every other issue contains links to everything in the latest issue's table of contents.News of book reviews published in American Scientist and around the web, as well as other noteworthy happenings in the world of science books.
To sign up for automatic emails of the American Scientist Update and Scientists' Nightstand issues, create an online profile, then sign up in the My AmSci area.
JSTOR, the online academic archive, contains complete back issues of American Scientist from 1913 (known then as the Sigma Xi Quarterly) through 2005.
The table of contents for each issue is freely available to all users; those with institutional access can read each complete issue.
View the full collection here.
Receive notification when new content is posted from the entire website, or choose from the customized feeds available.