Big Ideas: Oldest Material On Earth Identified and Living Robots Created from Frogs' Stem Cells

A 7 billion-year-old stardust has been identified as the oldest material on Earth. Plus, scientists create living, programmable organisms from the stem cells of African clawed frogs. And, researchers create "Frankenstein" concrete that can self-heal and reproduce.

Big Ideas: Oldest Material On Earth Identified and Living Robots Created from Frogs' Stem Cells

Photo: ichef.bbci.co.uk