To obtain authoring privileges for astronomy professionals:

• Register (it's free) and then log in. 
• Once you have registered and logged in, you can start your own website or join the contributors to the Cosmos Portal.
• To join the Cosmos Portal, click on the "Join this website" button in the Toolbar on the right side of this page.
• We'll send an email to your user account asking you to briefly let us know what you would like to post.

New authoring requests are usually approved in 1–2 business days.

This is the list of authors whose work is featured here in the Cosmos Portal.  Their names are linked to biographical sketches. See also the Editorial Board.