NASA says the space station and crew were never in any danger . Comment: The six-person crew consists of NASA astronauts Mike Hopkins and Rick Mastracchio of the United States ; Russians Mikhail Tyurin , Sergey Ryazanskiy and Oleg Kotov ; and Koichi Wakata of Japan . An emergency spacewalk could be necessary , but it 's too soon to tell .
NASA says the space station and crew were never in any danger . Comment: An emergency spacewalk could be necessary , but it 's too soon to tell .