Currently available on 3 streaming services.

Streaming, rent, or buy NASA's Unexplained Files – Season 6:

Currently you are able to watch "NASA's Unexplained Files - Season 6" streaming on Discovery +, Discovery+ Amazon Channel or buy it as download on Apple TV.

Where can I watch NASA's Unexplained Files for free?

There are no options to watch NASA's Unexplained Files for free online today in Canada. You can select 'Free' and hit the notification bell to be notified when season is available to watch for free on streaming services and TV.