TV Bill Nye Saves the World - Season 2 Episode 6 : How to Travel Through Time Bill Nye Saves the World - Season 2 Episode 6 : How to Travel Through Time 3.8/10 by 56 users Bill breaks down the science of time travel with guests Zach Braff, retired astronaut Scott Kelly and the minds behind "Star Trek" and "Lost." Details Casts Posters Images Title Bill Nye Saves the World - Season 2 Episode 6 : How to Travel Through Time Alternative Titles 세상을 구하는 사나이 빌 나이 First Air Date 2017-04-21 Last Air Date 2018-05-11 Number of Episodes 25 Number of Seasons 3 Genres Reality, Talk, Documentary, Networks Netflix, Casts Bill Nye Plot Keywords , Self - Host Bill Nye Episodes List Bill Nye Saves the World Season 2 :Episode 1 The Marijuana Episode The Marijuana Episode 2017-12-29 Bill Nye explores science and its impact on politics, society and pop culture. Each episode tackles a topic from a scientific point of view,... Bill Nye Saves the World Season 2 :Episode 2 Your Computer Is Under Attack Your Computer Is Under Attack 2017-12-29 Bill Nye explores science and its impact on politics, society and pop culture. Each episode tackles a topic from a scientific point of view,... Bill Nye Saves the World Season 2 :Episode 3 We Suck at Sleeping We Suck at Sleeping 2017-12-29 Bill Nye explores science and its impact on politics, society and pop culture. Each episode tackles a topic from a scientific point of view,... Bill Nye Saves the World Season 2 :Episode 4 Sex, Drugs and Superbugs Sex, Drugs and Superbugs 2017-12-29 Bill Nye explores science and its impact on politics, society and pop culture. Each episode tackles a topic from a scientific point of view,... Bill Nye Saves the World Season 2 :Episode 5 Extinction: Why All Our Friends Are Dying Extinction: Why All Our Friends Are Dying 2017-12-29 Bill Nye explores science and its impact on politics, society and pop culture. Each episode tackles a topic from a scientific point of view,... Bill Nye Saves the World Season 2 :Episode 6 How to Travel Through Time How to Travel Through Time 2017-12-29 Bill Nye explores science and its impact on politics, society and pop culture. Each episode tackles a topic from a scientific point of view,...