A rocket traveling at 0.560 sets out for the star, which is 4.20laway from earth. It will return to earth imme?

A rocket traveling at 0.560c sets out for the star, which is 4.20ly away from earth. It will return to earth immediately after reaching the star. According to the stay-at-home earthlings, how far will the rocket travel? L= ly According to the stay-at-home earthlings, how long will the journey last? t= y According to the rocket crew, how far will the rocket travel? L= ly According to the rocket crew, how long will the journey last? t= y please help