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Moon and Earth have common water source

By Guest PostJune 16, 2013Sciencealberto saal, amounts of deuterium, apollo missions, carnegie institution, common water source, crystal, earth, earth history, erik hauri, extra neutron, hydrogen deuterium ratios, inner solar system, james van orman, lunar rock, malcolm rutherford, moon, multicollector ion microprobe, nasa spacecraft, olivine, volatile elements, Washington

Researchers used a multicollector ion microprobe to study hydrogen-deuterium ratios in lunar rock and on Earth. Their conclusion: The Moon’s water did not come from comets but was already present on Earth 4.5 billion years ago, when a giant collision sent material from Earth to form the Moon.

PROVIDENCE, R.I. [Brown University] —Water inside the Moon’s mantle came from primitive meteorites, new research finds, the same source thought to have supplied most of the water on Earth. The findings raise new questions about the process that formed the Moon. (more…)

UMD-Led Team Begins Imaging Comet Hartley 2 with Deep Impact Spacecraft

COLLEGE PARK, Md. — Some five years after its July 4th 2005 ‘comet shot’ was seen around the world, the Deep Impact spacecraft has begun regular imaging of a second comet target, Hartley 2. The spacecraft will continue imaging Hartley 2 during and after its closest approach on November 4, providing an extended look at the comet. However, there won’t be any fireworks this time as Deep Impact’s probe craft was destroyed in its deliberate 2005 collision with comet Tempel 1. (more…)

Tag Archives: inner solar system

Moon and Earth have common water source

UMD-Led Team Begins Imaging Comet Hartley 2 with Deep Impact Spacecraft