Space Junk Threatens Atlantis' Hubble Repair Mission

A myriad of space debris combined with a 21-inch scratch across delicate thermal tiles has the seven-member crew of Space Shuttle Atlantis facing very real danger as it tries to repair and update the Hubble Space Telescope. "Something the size of a pea could put a hole in the spacecraft," former astronaut Jeffrey Hoffman told "Good Morning America." "They can usually track [pieces of debris] down to two inches... What you really worry about are the pieces too small to track, but big enough to...Full Story
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