An artists impression of a Starlink satellite in orbitMichal Bednarek/ShutterstockA fragment of an out-of-control SpaceX Starlink satellite smashed into a farm in Canada last year, New Scientist can reveal raising questions about the risks of de-orbiting space junk.Thatll punch a hole in whatever it lands on, including your head, says Samantha Lawler, an astronomer at the University of Regina in Canada.Last July, SpaceX launched a batch of its internet-providing Starlink satellites on a Falcon 9 rocket, but a malfunction with the rockets upper