Summary: Would summer be complete without hot days, lemonade stands, and... cosmology? We asked people near the MIT campus to explain spacetime in exchange for free lemonade. See what they said. Got your own explanation for spacetime? Post your videos on our Facebook page. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and PBS viewers. Major funding for "The Fabric of the Cosmos" is provided by the National Science Foundation.
