Cosmic Nobility is not an Ascension Civilization; Eternal Life Technology is only in the hands of Ascension Civilizations.
But to be honest, eternity isn't invincible. In his previous life, Gao Gong saw many records of destroyed Ascension Civilizations while squatting at the Civilization Council.
However, for a sentient being, achieving 'immortality' in the absence of calamity is already the greatest blessing.
But the technology of Ascension Civilizations will not leak out.
Although Cosmic Nobility is very wealthy, if they want 'immortality', they must use some special means.
For example, by creating a 'Giant Structure' and merging consciousness with it, they can achieve lifespans in the billions.
This is also another form of immortality.
After all, this kind of existence called 'Giant Structure' is hard to destroy even for Ascension Civilizations.
