Kosmosest is a newsletter covering the highlights of space exploration and astronomy, digestible bites of complex topics, and a look into the backstage of learning about our universe. Brought to you by Mari-Liis Aru, an astrophysics researcher and science communicator.

Subscribe to get every new edition of the newsletter directly in your inbox.

Do you enjoy informational content?

If you’d like to show your support for educational content:

  • Share this newsletter with others: spread the word! You can use your preferred social media platform.


  • Like the posts and leave comments if you found the content useful.


M.L. Aru
Astrophysicist explaining complex topics in a digestible way. 💬 Given my education and experiences in space sciences, I aim to bring space closer to a broad audience. 👩‍💻 I share helpful resources for aspiring scientists and first-gen students.