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16 October 2019

Ancient Moon rock provides evidence of giant lunar impact 4.3 billion years ago

An Apollo 16 lunar rock sample shows evidence of intense meteorite bombardment on the Moon 4.3 billion years ago, according to new research. The results provide new insights for the Moon’s early history, showing lunar impacts were common throughout the Moon’s formation than previously thought.

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6 June 2018

Scientists solve lunar mystery with aid of missing Moon tapes

After eight years spent recovering lost Moon data from the Apollo missions, scientists report in a new study they’ve solved a decades-old mystery of why the Moon’s subsurface warmed slightly during the 1970s. Scientists have wondered about the cause of the warming since soon after the Apollo missions started, when astronauts deployed probes on the Moon to measure the heat coming from its interior. The lost data tapes recovered by the scientists filled in a record gap during the 1970s and helped the researchers pinpoint the source of the warming as the Apollo astronauts themselves.

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22 November 2012

Thanksgiving With the Kranzes

I post this pretty much every year, but it’s too good not to share. If you’re feeling ambitious, Gizmodo also has some… “interesting” ways to cook a turkey from NASA engineers. I personally like the sounding rocket method.

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31 October 2011

Lasers, Lunar Landings, and LRO

The young man was very interested in my work. I described how the tunable laser worked, how we were able to measure carbon dioxide and why it mattered. He was genuinely interested lasers and asked about other uses. I explained that laser can be used for cutting steel, measuring how fast cars are traveling, and as guide stars for observatories. I mentioned that scientists are able to accurately measure the distance to the moon by bouncing the lasers off or reflector arrays placed there by the Apollo astronauts. As I talked about the astronauts on the moon, I watched this guy’s face change. He thought for a minute and asked something like: You think we landed on the moon?

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