Weekly Digest: Mass Extinction Isn’t What We Thought and more

This is our weekly compilation of science news00:00 - Interstellar Object Might Be Alien Probe, Astronomer Claims – What’s the Evidence?
5:11 - Mass Extinction Isn’t What We Thought
10:36 - 3 Tons of Gold Per Year from Nuclear Fusion?
15:20 - Africa Is Getting a New Ocean, And We Finally Know Why