Lasers illuminate the space junk and nuclear waste problem

TOKYO That more and more countries, and even students, are launching satellites into orbit is usually reported as good news. But while the final frontier may be more accessible than ever before, rocket boosters are spent and satellites eventually die. Something has to be done about all the space junk or new craft will have nowhere to operate. Derelict rockets and satellites collide and break up, scattering debris still further.