This post was inspired by an email conversation with Emma from the brilliant blog Science at Your Doorstep and by a question from an Aliventures reader. It was first published in April 2018 and updated in October 2021.| Aliventures
This post was first published in November 2022 and last updated in May 2025.| Aliventures
This post was originally published in June 2016 and updated in June 2020.| Aliventures
Note: This post was first published with four stages of writing in 2011, and updated in May 2021 to include the publishing stage. Images are used under the Creative Commons 2.0 license.| Aliventures
Note: This post was originally published in 2014, and was last updated in May 2021.| Aliventures
This post was first published in April 2019 and updated in April 2022.| Aliventures