![How can you tell if that ET story is real? St Andrews scientists revise the Rio Scale for alien encounters How can you tell if that ET story is real? St Andrews scientists revise the Rio Scale for alien encounters](https://www.seti.org/sites/default/files/2018-07/Close-Encounters-of-the-Third-Kind---Credit-Columbia-Pictures_Bigger.jpg)
How can you tell if that ET story is real? St Andrews scientists revise the Rio Scale for alien encounters
![Alien news BOMBSHELL: SETI makes MAJOR announcement on hunt for aliens | Science | News | Express.co.uk Alien news BOMBSHELL: SETI makes MAJOR announcement on hunt for aliens | Science | News | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/151/590x/Alien-news-SETI-UFO-hunters-Rio-scale-998080.jpg?r=1533225180583)
Alien news BOMBSHELL: SETI makes MAJOR announcement on hunt for aliens | Science | News | Express.co.uk
![Rio 2.0: revising the Rio scale for SETI detections | International Journal of Astrobiology | Cambridge Core Rio 2.0: revising the Rio scale for SETI detections | International Journal of Astrobiology | Cambridge Core](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20190717133758972-0515:S1473550418000162:S1473550418000162_fig2g.jpeg?pub-status=live)
Rio 2.0: revising the Rio scale for SETI detections | International Journal of Astrobiology | Cambridge Core
GitHub - dh4gan/rioscale2: Hosts a web-based quiz for a revised Rio Scale (and a command line version using Python)
![Rio 2.0: revising the Rio scale for SETI detections | International Journal of Astrobiology | Cambridge Core Rio 2.0: revising the Rio scale for SETI detections | International Journal of Astrobiology | Cambridge Core](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20190717133758972-0515:S1473550418000162:S1473550418000162_fig1g.jpeg?pub-status=live)