Big Ideas: August 23, 2019

In this edition: Is there anything CRISPR can't do? Scientists have found yet another application for the gene-editing tool. It can now be used to create shape-shifting smart materials that can deliver drugs and sense biological signals. Plus, a space tugboat to clean up space junk and other orbital housekeeping. And, scientists track the life and breath of galaxies.

Big Ideas: August 23, 2019

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