Do we need humans to explore space or are machines (robots) a better alternative to reach beyond and into the solar system?

Y’all i need answers plss people are saying me and my brother look alike although we’re two different ages. one year apart i’m a girl, btw i’m thinking we could be fraternal twins idk my parents and my friends think we look alike

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement