Ideal setting for alien life; NASA Poop Challenge winner; Fort Mac rebounds; and more

Air Date: Feb 25, 2017 12:00 AM ET

Solar system with 7 earth-size planets; New Zealand wants to use gene drives in war on predators; Cave crystals contain 50,000-year-old life; Somebody won NASA's spacesuit toilet contest; Fort Mac forests on the rebound; Why did my jello freeze like this?