Comet's water different from Earth's - USA TODAY

USA TODAY
Comet's water different from Earth's
USA TODAY
Where Earth's water came from remains a mystery, but it probably did not come from comets in our corner of the solar system, according to data from the Rosetta mission. It's more likely that if the molecular building blocks of our planet's oceans came from ...
Rosetta science: Study suggests water on Earth did not come from cometsLos Angeles Times
Rosetta Data Support View That Asteroids Brought Water to EarthWall