3D Printing and Your Liver

Take a moment and imagine this scenario: a terrible accident happens to your close friend and his liver is severely damaged. He'll need a new one but the waiting list for a liver donation is so long that it's unlikely he'll get one in time.

What to do?

Tissue engineering to the rescue. Recent research has blended synthetic biology, 3D printing, and a spoonful of sugar to build you a new liver from scratch.

Mutants Among Us! Can Humans Evolve?

In the TV show Heroes, hundreds of people discover that they have superhuman powers.  My favorite power from the show is Hiro's ability to master time and space.  This is the only power in all of science fiction that I would prefer to Nightcrawler's poof (from X-men).  Just like X-Men, Heroes explains that these special individuals are a more evolved form of human.  Is this how evolution happens?  Is it possible to wake up with a genetic mutation that gives you added powers?  Do mutants usually wear black?