The James Webb Space Telescope (JWST)

 The launching of the James Webb Space Telescope on Christmas day, 2021 represents an important milestone in the history of space exploration. It has already played a huge role in expanding our knowledge and understanding of the universe. If you want to see new discoveries in your online feed and celebrate older ones, The James Webb Space Telescope (JWST) will fill you with a sense of awe and wonder. Image comparisons between Hubble and James Webb are an important component of this group, but there are also links to articles and lectures, as well as facts on the solar system, video clips, individuals who played an important role in the space race, and details about current and ongoing space missions.

Members: 1.6 million at time of writing

Trigger Warnings: None

Go here to visit or join. 

Nasa

If outer space interests you, then this Facebook group, dedicated to Nasa and its concerns should provide you with plenty to explore. The group's information section proudly proclaims that one of their admins is a Nasa employee. On the discussion board, you will find threads dealing with subjects such as 'Can we live on other Planets???', 'WILL THE US EVER WALK ON THE MOON AGAIN?', 'Mars - A Second Earth?', 'UFO and Alien sightings', 'A new approach towards humans in space', 'Alpha centauri , is are there any planets ?' and many more. There are 70 links to Nasa related videos, more than 200 links to other resources and over 600 images of stars, planets, galaxies, nebula and many more in the gallery.

What's great about this group: It's a must for anyone with an interest in astronomy.

Update (22 April 2024)

There are numerous groups dedicated to NASA.