Complex sentence: In 2009, glycine sampled in 2004 from comet Wild 2 by the NASA spacecraft Stardust was confirmed--the first discovery of glycine outside the Earth, although glycine had been identified in the Murchison meteorite in 1970.
Split into simpler sentences: In 2009, glycine sampled in 2004 from comet Wild 2 by the NASA spacecraft Stardust was confirmed. This is the first discovery of glycine outside the Earth, although glycine was identified in the Murchison meteorite in 1970.