Researchers concerned about an increasing amount of debris orbiting the earth are calling for the active removal of space junk, saying it will ensure a safe environment around the planet. More than 300 scientists and other experts who met for four days at the European Space Agency said Thursday that sharing information is a crucial first step in preventing collisions and predicting with more accuracy where derelict satellites may fall to earth. “We need to share more data,” said Thomas Schildknecht of the Aeronautical Institute of the University of Bern.
