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#1
August 24th 19, 06:45 AM
posted to sci.space.science
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[PS] LightSail 2 Marks 1 Month of Solar Sailing
Planetary Society Blog /////////////////////////////////////////// LightSail 2 Marks 1 Month of Solar Sailing Posted: 23 Aug 2019 09:39 AM PDT http://www.planetary.org/blogs/jason...h-sailing.html LightSail 2's orbital high point around the Earth has raised by 7.2 kilometers, without any conventional fuel. /////////////////////////////////////////// Is a $2 Billion Prize for Landing on the Moon a Good Idea? Posted: 23 Aug 2019 05:00 AM PDT http://www.planetary.org/blogs/casey...-the-moon.html Though prize incentives can be useful for certain problems, huge cash payouts for human spaceflight are not good policy. 
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