Russian satellite breaks up, forces space station astronauts to shelter

FILE - This photo provided by NASA shows the International Space Station from the SpaceX Crew Dragon Endeavour during a fly around of the orbiting lab, Nov. 8, 2021.

A defunct Russian satellite has broken up into more than 100 pieces of debris in orbit, forcing astronauts on the International Space Station to take shelter for about an hour and adding to the mass of space junk already in orbit, U.S. space agencies said.