Posts Tagged ‘The Moon’

The Moon Transits Earth

Thursday, July 17th, 2008

The Deep Impact spacecraft was the one that smacked a chunk of copper into a comet so that we could see what materials were below the surface. After the impact, the spacecraft kept going (with the mission renamed EPOXI), and it’s being used to do all sorts of interesting observations.

In late May, 2008, it turned its cameras back to Earth and observed us over the course of a several hours. During this time, from EPOXI’s point of view, the Moon passed directly in front of the Earth!

–>Link to Bad Astronomy

Moon Water Found, Raises Questions About Origin Theory

Wednesday, July 9th, 2008

Water found in moon matter counters the long-held belief that Earth’s satellite is bone dry, researchers announced today.

Geologists used new technology to coax water molecules from volcanic glasses brought back decades ago by two Apollo missions.

The researchers believe the water was ejected along with magma when “fire fountains” erupted more than three billion years ago from the moon’s surface.

The finding raises new questions about the long-standing “giant impact” theory, which holds that the moon was formed more than a billion years prior to that when a Mars-sized body slammed into Earth and sent debris into orbit.

–> Link to article


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