WARSAW, Feb 17 (Reuters) - Poland will not send troops to Ukraine, Prime Minister Donald Tusk said on Monday, as he set off for an emergency summit in Paris to discuss Europe's role in any ceasefire.

Poland's space agency POLSA is looking into whether an unidentified object found near the western Polish city of Poznan on Wednesday is debris from Elon Musk's SpaceX Falcon 9 rocket, a ...