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Besides black holes, are there other possible ways to time travel that we could actually do now or in the near future?

There's some bad news: the only way you can travel into the past is through a history book. But, time travelling into the future may be a different story.

You can travel into the future if you can stop your body from aging. You could freeze it in time, so to speak. In fact, some people think they can do just that--freeze your body and then thaw you in the future.

A division of science known as cryobiology studies the effects of freezing on organisms. Some cold-blooded animals and insects partially freeze during the winter and then thaw when it warms in spring. How would you like to use a frog as an ice cube?

Some scientists are studying how these creatures survive freezing. If humans were to freeze, the water in our cells would turn into ice and rip the cells apart. If we were to find a way to prevent this from happening, we could be frozen and then thawed again in the future--without getting older.


Submitted by Danielle (Michigan, USA)
(August 27, 1997)



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