article_snippet: Hubble Space Telescope have confirmed that the .
article_snippet: surface, raising the prospects for life, Nasa has revealed.
article_snippet: The finding resolves a mystery about the largest moon in the . solar system after Nasa's now-defunct Galileo spacecraft .
article_snippet: some detective work to confirm the discovery.
article_snippet: Scientists also repeated the seven-hour, ultraviolet Hubble .
article_snippet: NASA Associate Administrator Jim Green called the finding . 'an astounding demonstration.' 'the finding developed new approach to look inside a planetary body .
article_snippet: with a telescope,' NASA Associate Administrator Jim Green said.
article_snippet: It is one step further toward finding that habitable, .
article_snippet: Universities for Research in Astronomy.
highlights_snippet: Finding resolves a mystery about the largest moon in the solar system .
  