About 60 miles above Earth is a line where our atmosphere ends and space begins.  That boundary is called the Karman line.  Of course, rockets that astronauts take go much farther than that.  But just how far from earth have astronauts gone?  And what do they need to bring for the trip?!  We asked spacesuit designer Pablo de Leon to help us find the answer! Got a question that’s far out? Send it to us at BrainsOn.org/contact, and we’ll shoot for the moon to find the answer.