Welcome to the Tech News Countdown, hosted by Alison Haislip. Every Saturday, Alison will take you through the top tech stories of the week.
This week Alison looks at the latest from NASA's scientists and visible gravity, Toshiba's new DVD format, bandwidth limits, an online body shop that let's you price out a cybernetic body, and the International Space Station's toilet troubles.
Give it a watch and tell us what you think in the comments section. You can also cast your opinion in the Tech News Countdown forum.
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