When did Catalyst Season 19 Episode 4 air?
Catalyst Season 19 Episode 4 aired on August 28, 2018.


Catalyst is Australia's premier science investigation series. Each week the team brings you stories from Australia and around the world, meeting scientists at the forefront of discovery.

Catalyst examines the science of time travel. What do we need to be able to do or understand to construct a functioning time machine. Dr Graham Phillips showcases the scientists working on the cutting edge of discovery.
Direct answers for episode-level questions and details.
Catalyst Season 19 Episode 4 aired on August 28, 2018.
This episode runs for approximately 30 minutes.
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