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Footsteps on the Moon - 50 years #931291
07/20/19 09:36 PM
07/20/19 09:36 PM
Joined: May 2010
Posts: 8,270
United Kingdom
Mona - Astronomy Online content OP
BellaOnline Editor
Mona - Astronomy  Online Content OP
BellaOnline Editor
Stone Age Human

Joined: May 2010
Posts: 8,270
United Kingdom

Half a century ago today, humans first set foot on another world - our companion, the Moon. For thousands of years we had looked up at the sky and seen the Moon - the only one, nothing else like it in the sky, except maybe the Sun that seemed to be its partner. We now know that the Sun contains almost all the mass of the whole Solar System. Everything else shares a fraction of 1% of the total mass. But the Moon looks the same size as the Sun from Earth. As it happens, the disk of Sun is about 400 times bigger than that of the Moon, but is 400 times further away.

It was quite a shock when Galileo discovered that Jupiter had four moons. (It has actually has loads more than that, but you can't see the others with a small telescope.) It took less than three centuries after that to realize everybody had moons except Mercury and Venus. And it didn't take another century after that before 12 people had walked on the Moon and another 12 had orbited it.

I liked Michael Collins's account of Apollo, written without a co-author or ghostwriter.

What was it like to be one-third of the Apollo 11 crew? Michael Collins, the man in the command module that didn't land on the Moon, tells a fascinating story of astronaut training and space travel.

Carrying the Fire - Book Review


Mona Evans
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Re: Footsteps on the Moon - 50 years [Re: Mona - Astronomy] #931294
07/21/19 08:46 PM
07/21/19 08:46 PM
Joined: May 2010
Posts: 8,270
United Kingdom
Mona - Astronomy Online content OP
BellaOnline Editor
Mona - Astronomy  Online Content OP
BellaOnline Editor
Stone Age Human

Joined: May 2010
Posts: 8,270
United Kingdom

What would it be like to leave Earth's protective embrace and journey to an alien world? Only twenty-four men have ever experienced this - Apollo astronauts. "In the Shadow of the Moon" uses original footage & astronaut interviews to tell the story of one of the defining events of human history.

In the Shadow of the Moon - film

Worth seeing. It looks like Amazon has copies for sale or rent - options vary between USA and UK.


Mona Evans
For news, activities, pictures and more, sign up to the Astronomy Newsletter!

http://www.bellaonline.com/newsletter/astronomy
Re: Footsteps on the Moon - 50 years [Re: Mona - Astronomy] #931300
07/23/19 11:13 AM
07/23/19 11:13 AM
Joined: May 2010
Posts: 8,270
United Kingdom
Mona - Astronomy Online content OP
BellaOnline Editor
Mona - Astronomy  Online Content OP
BellaOnline Editor
Stone Age Human

Joined: May 2010
Posts: 8,270
United Kingdom
Chris Kraft died yesterday (July 22, 2019), having lived to see the 50th anniversary of the first Apollo Moon landing.

NASA Administrator Jim Bridenstine:
Quote
Chris was one of the core team members that helped our nation put humans in space and on the Moon, and his legacy is immeasurable. Chris’ engineering talents were put to work for our nation at the National Advisory Committee for Aeronautics, before NASA even existed, but it was his legendary work to establish mission control as we know it for the earliest crewed space flights that perhaps most strongly advanced our journey of discovery. From that home base, America’s achievements in space were heard across the globe, and our astronauts in space were anchored to home even as they accomplished unprecedented feats.


Mona Evans
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http://www.bellaonline.com/newsletter/astronomy

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