Entombed

In the process of decoding the terminal, a failsafe was triggered and the entire room quickly filled with an expansive foam-like material. Before anyone could assist …, … completely encased. Any attempts to uncover … were fruitless, as what material could be removed was instantly replaced. As is standard procedure, we have retracted the emergency anchor and recovered the Rift Sphere and its collected samples.

The command below will trigger the "Entombed" event in Stellaris:

When this event fires, you can choose between the following option:

• Unfortunate.

Stellaris events fire in chains — one event leads to the next. Here is how Entombed (astral_rift.120) connects.