Friday, 21 August 2009 19:38
glycine in space
After analysis of samples of the comet Wild 2 brought back by the
Stardust spacecraft, NASA researchers have found the amino acid glycine
to be present in the comet, according to a recent NASA release. Glycine
is considered to be one of the building blocks of life, and this
strengthens the case that substances favorable to the formation of life
may have been delivered to Earth from space—and may likewise have been
delivered to other planets by other comets.
This is the first time that glycine has been found in a comet.