Fusion in Space: New Plasma Thruster Tested Successfully -- and other science news of the week

This is our weekly compilation of science news. 00:00 - New Experiment Could Settle 100 Years-Old Debate about Quantum Tunneling 5:08 - Fusion in Space: New Plasma Thruster Tested Successfully 12:47 - The Multiverse just Got Bigger: An Upgrade for the Many Worlds Interpretation 18:34 - Bird Flu Spreads to Dairy Cattle, Farm Worker Infected, Virus Fragments in Milk