Yesterday, NASA held a press conference to unveil a new scientific discovery: a lab-altered bacterium that thrives on arsenic. While I am certainly not an expert here, luckily we have the Discovery News team to break things down.

Check out Discovery News’ “Wide Angle” on extreme life and, if the possibility of extraterrestrial life intrigues you, learn more from Dr. Felisa Wolfe-Simon (in her appearance on Science Channel‘s Through the Wormhole) and see what the Meteorite Men have to say.

Also, catch a special presentation of the “How Did We Get Here?” episode of Through the Wormhole on Saturday, December 4 at 8pm ET/PT.