Rust, 47 bytes

|s:&str|{for i in s.bytes(){print!("{:b} ",i)}}

Try it online!

A closure iterating over the string, converting each character to its ascii number, then printing out it's binary equivalent with :b

Rust, 47 45 bytes

|s:&str|for i in s.bytes(){print!("{:b} ",i)}

Try it online!

A closure iterating over the string, converting each character to its ascii number, then printing out it's binary equivalent with :b

Turns out you don't need {} always to define a closure