edit: The exoplanet stuff was supposed to go to a different thread, sorry!!! I’ll leave it here so the response doesn’t look out of place 
Just witnessed the death of an exoplanet, the atmosphere goes up from 16min time left as follows.
16 min +1 atmosphere
12 min +2 atmosphere
8 min +3 atmosphere
4 min +4 atmosphere
After the timer goes to 0 you get booted from the server and the portal doesn’t open anymore.
That’s a bit of an exaggeration, you had to press a button thousands of times and take time to collect the rocks and manage inventories and handle the resulting items etc.