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June 21st, 2011
05:06 PM ET
June 21st, 2011
02:22 PM ET
June 21st, 2011
01:45 PM ET

Today's Big I – Living Lasers

Imagine if you could do with your hand what ET did with his pointer finger in Universal Picture's classic movie?

Remember how it glowed?

In today's Big I we spoke to two PH.D's from Harvard Medical School who said that one day human cells could emit a beam of light.

Click here for more from the Harvard Gazette.

Filed under: Ali Velshi • The Big I