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Comments on: Mars Landing https://whynow.dumka.us/2012/08/04/mars-landing/ On-line Opinion Magazine...OK, it's a blog Mon, 06 Aug 2012 04:44:10 +0000 hourly 1 https://wordpress.org/?v=6.4.3 By: Bryan https://whynow.dumka.us/2012/08/04/mars-landing/comment-page-1/#comment-60170 Mon, 06 Aug 2012 04:44:10 +0000 http://whynow.dumka.us/?p=26144#comment-60170 The networks aren’t interested in news or science or, as near as I can tell, much of anything. The entertainment ‘news’ all seems to be about shows on cable. I assume that the networks still have shows, but they don’t seem to be worth talking or writing about.

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By: hipparchia https://whynow.dumka.us/2012/08/04/mars-landing/comment-page-1/#comment-60169 Mon, 06 Aug 2012 04:24:36 +0000 http://whynow.dumka.us/?p=26144#comment-60169 i remember watching everything on broadcast tv.

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By: Bryan https://whynow.dumka.us/2012/08/04/mars-landing/comment-page-1/#comment-60168 Mon, 06 Aug 2012 00:59:40 +0000 http://whynow.dumka.us/?p=26144#comment-60168 In reply to Steve Bates.

It’s logical that they would have it in Houston, probably over on Florida’s ‘Space Coast’, and maybe in the area around JPL, but the rest of the nation needs broadband to see it.

I’m so old I remember when you could watch these events on broadcast television.

The heavier gravity, atmosphere, and command delay because of distance make this an iffy proposition. Hope is what we are left with.

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By: Steve Bates https://whynow.dumka.us/2012/08/04/mars-landing/comment-page-1/#comment-60167 Sun, 05 Aug 2012 23:35:08 +0000 http://whynow.dumka.us/?p=26144#comment-60167 NASA TV, the public channel, is here. Not surprisingly, all four NASA channels will be broadcasting the landing. Pre-landing TV begins at 10:00PM CDT. The TV schedule says the program will cover “Entry, Decent [sic] and Landing,” so I suppose there won’t be anything to offend parents of young children.

It is my understanding that the complete vehicle will descend to a very slow approach about 20m from the surface (‘m’ is meters here), then winch the rover down the rest of the way on cables, and finally explosively detach the cables and fly away. This was the only way they thought they had a chance of landing a rover far heavier than anything they’ve landed on Mars before.

I have hope, but not confidence: as their scoreboard shows, so far in Mars landings, it’s Mars 24, Earth 15. This ain’t easy!

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By: Bryan https://whynow.dumka.us/2012/08/04/mars-landing/comment-page-1/#comment-60165 Sun, 05 Aug 2012 17:13:58 +0000 http://whynow.dumka.us/?p=26144#comment-60165 This is the 40th mission and so far Mars leads 24-15 on landings, so it is a very chancy operation.

This is one of the reasons no one is discussing a manned mission. There is enough of an atmosphere on Mars to make things ‘very interesting’, and we don’t have enough information to predict the weather in more than very general terms.

Apparently part of the landing system is a device that will land and then attempt to take off after the rover is on the ground. If that is successful, a manned mission is much closer.

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By: jamsodonnell https://whynow.dumka.us/2012/08/04/mars-landing/comment-page-1/#comment-60164 Sun, 05 Aug 2012 10:03:55 +0000 http://whynow.dumka.us/?p=26144#comment-60164 I’d forgotten all about this mission. Thanks for the reminder

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