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PHOTOS: How Are These 10 Shapes Equivalent To A Donut?

The Huffington Post | Travis Korte | Posted 04.02.2013 | Science

There's an old joke among mathematicians that topologists (who study deformations of space) can't tell a coffee cup from a donut. This is because, as ...

WATCH: NASA Imagines 10,000-Person Space Colony In 1975

The Huffington Post | Catharine Smith | Posted 10.22.2011 | Technology

Scroll down for video. In the 1970s, some at NASA believed humans would be colonizing space by now. They conducted a summer study in 1975 that expl...