# Protostars: How do they work ?

A node (Protostar) allows you to earn a passive income for life in exchange of an investment which will be locked (sunk cost). So by putting an initial investment in our service ( 10 NEFI), you will obtain a daily return of 0.1 Nebula tokens ( NEFI) until 500% ROI is reached , at which point the node will decay and be destroyed.\
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In addition, by purchasing a Nebula Protostar, you are investing in a protocol that aims to earn its investors daily rewards, while helping the team strengthen the sustainable growth of the project.


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