Asteroid Study Raises Questions About Earth’s Water Source

Artist's concept of Hayabusa.

Credit: JAXA
HOUSTON—A study of a sample from an S-type asteroid returned to Earth in 2010 has produced a surprising result—evidence of sodium chloride, or table salt, that formed in the presence of water in a class of planetary bodies long thought to lack water-bearing minerals. The research findings, published...
Mark Carreau

Mark is based in Houston, where he has written on aerospace for more than 25 years. While at the Houston Chronicle, he was recognized by the Rotary National Award for Space Achievement Foundation in 2006 for his professional contributions to the public understanding of America's space program through news reporting.

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