SpaceX ready to launch again.

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Message 1892333 - Posted: 29 Sep 2017, 9:23:58 UTC

It seems that Musk wants to go to Mars with a 31 boosters Falcon rocket. But will it come back? I remember a forecast made by Wernher von Braun. You need to put 30 thousand tons in Earth orbit to go to Mars and come back. Even with improvements made to rocket propulsion, this is too much. The NASA-ESA-ROSCOSMOS plan to build a lunar space station as a start step seems more realistic.
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Message 1892335 - Posted: 29 Sep 2017, 10:24:50 UTC - in response to Message 1892333.  

It seems that Musk wants to go to Mars with a 31 boosters Falcon rocket. But will it come back? I remember a forecast made by Wernher von Braun. You need to put 30 thousand tons in Earth orbit to go to Mars and come back. Even with improvements made to rocket propulsion, this is too much.
Tullio

Hopefully they will do some tests to land on Mars and successfully bringing the spacecraft back to earth before sending humans to Mars.
When will we see that?
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Message 1892337 - Posted: 29 Sep 2017, 10:41:05 UTC

Musk is going to Mars by 2024.

Musk to Mars
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Message 1892343 - Posted: 29 Sep 2017, 11:30:21 UTC - in response to Message 1892337.  

Yes. And a cargo already in 2022.
Mr Musk recognises that his ambitious timelines sometimes slip. When he put up a slide in Adelaide stating that the first cargo (no humans aboard) versions of BFR would go to Mars in 2022, he said: "That's not a typo, although it is aspirational."

So far all human trips to Mars looks to me like a one way ticket!
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Message 1892346 - Posted: 29 Sep 2017, 11:56:30 UTC

NASA simulates Mars missions in the Johnson Space Center. The last one, HERA XIII, lasted 45 days. As far I can see from photos, the 4 crew members are all male. Does this means that NASA is not planning to send women on a Mars mission? This is a rather a controversial subject.
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Message 1892358 - Posted: 29 Sep 2017, 13:11:54 UTC - in response to Message 1892346.  

Hawaii Space Exploration Analog and Simulation, HI-SEAS also simulate Mars missions.
4 male and 2 women :)
The Hawaii researchers say one of the chief advantages of their project is the area's rugged, Mars-like landscape, on a rocky, red plain below the summit of Mauna Loa.
http://www.chicagotribune.com/news/nationworld/science/ct-hawaii-mars-simulation-20170917-story.html
Maybe they should test this in the Antarctic as well where the average temperature is about the same as Mars.
And trying to adjust to breathing oxygen in your backpack for many hours walking around Mars.

I rather stay on earth for now.
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Message 1892405 - Posted: 29 Sep 2017, 15:05:15 UTC

Mauna Kea will have its 30 meters telescope, it has been allowed. It will compete with the European Southern Observatory Extremely Large Telescope on the Atacama high plain in Chile for the role of biggest optical telescope, while the James Webb launch has been postponed to 2019.
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Message 1892474 - Posted: 29 Sep 2017, 20:24:50 UTC

Musk said that they need to generate methane and O2 from CO2 and ice at Mars, in order to have a ship return to Earth.

The speech yesterday didn't give much new information. The design of his ship and booster had some changes, compared to last year's speech, but it's pretty much the same overall idea. The big changes I heard was that Musk is interested in the Moon now, previously he was not. Maybe he hopes to generate revenue from Moon missions to help fund his R&D. And he eventually wants to switch most of his factory/workforce to this new rocket, and only have the Falcon 9 and the yet unflown Falcon Heavy as backups.

He wants to do a Mars mission in 2022 as a test and to deliver cargo. Also to search for sites with plenty of water for generating fuel, and test the fuel equipment. Then 2024 he wants a manned mission to build permanent facilities for the fuel generation. This also isn't new information. I think SpaceX will eventually carry out their goals, but I doubt they can do this so soon.

At the end of yesterday's speech, he mentioned and showed an animation of using this new rocket/ship for suborbital flights on Earth, the go anywhere in less than 1 hours. But it seemed like a thought exercise.
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Message 1892532 - Posted: 30 Sep 2017, 0:24:32 UTC

You cannot launch a manned mission to Mars in the hope it finds enough fuel to get back. You must be sure it has fuel to get back and this can be done, IMHO, with a nuclear propulsion system.
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Message 1894347 - Posted: 9 Oct 2017, 17:27:01 UTC

US Vicepresident Mike Pence, who chairs the National Space Council, said at NASA that US should continue sending astronauts in low Earth orbits and to the Moon, with the purpose of establishing a manned base there. He made no mention of a manned mission to Mars.
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Message 1894351 - Posted: 9 Oct 2017, 17:40:24 UTC - in response to Message 1849971.  

nessuno che parla in italiano... auff che fatica!
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Message 1894486 - Posted: 10 Oct 2017, 7:43:07 UTC - in response to Message 1894351.  

Io parlo anche in italiano in Italian cafe ma il solo che mi risponde in italiano e' uno svedese. Gli italiani che scrivono sui blog di Le Scienze, edizione italiana di Scientific American, non si degnano mai di visitare il mio Cafe.
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Message 1894696 - Posted: 11 Oct 2017, 19:44:22 UTC - in response to Message 1894347.  

US Vicepresident Mike Pence, who chairs the National Space Council, said at NASA that US should continue sending astronauts in low Earth orbits and to the Moon, with the purpose of establishing a manned base there. He made no mention of a manned mission to Mars.
Tullio

I think that is the smart thing to do.
Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
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Message 1895003 - Posted: 13 Oct 2017, 10:06:07 UTC

+1

If we can't set up a manned moon colony we have no chance on Mars.
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Message 1895014 - Posted: 13 Oct 2017, 12:20:14 UTC

OK. First we have to send a Space Station in orbit around the Moon. Then it would launch exploratory missions on the Moon surface to hunt for ice. If found, a nuclear reactor should be sent on the Moon surface to provide electricity and get water and oxygen from that ice. From this, a build up stage could start. Nuclear power is essential.
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Message 1895016 - Posted: 13 Oct 2017, 12:26:43 UTC - in response to Message 1895014.  

OK. First we have to send a Space Station in orbit around the Moon. Then it would launch exploratory missions on the Moon surface to hunt for ice. If found, a nuclear reactor should be sent on the Moon surface to provide electricity and get water and oxygen from that ice. From this, a build up stage could start. Nuclear power is essential.
Tullio

Granted, but setting up house on the moon is still an order of magnitude easier than doing it at Mars. And we know that the moon (earth's) is lifeless and therefore can't be contaminated by our presence. Also since the moon's gravity well is much easier to escape from the amount of fuel needed to get anywhere in the solar system would be reduced.
Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
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Message 1895037 - Posted: 13 Oct 2017, 14:55:47 UTC
Last modified: 13 Oct 2017, 14:56:17 UTC

All this can be calculated. There is a thing we cannot calculate, because we don't know. Is there any ice on the Moon? We have to go here and find it. If there is not, all the rest is just speculation.
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Message 1900715 - Posted: 12 Nov 2017, 15:16:54 UTC
Last modified: 12 Nov 2017, 19:05:28 UTC

The Antares rocket built by Orbital Sciences Corporation has been launched from the NASA Wallops island base carrying the Cygnus spacecraft with a load of food, oxygen, water and scientific instruments for the International Space Station where it should arrive on next Tuesday. It is another launch by a commercial supplier of the ISS. Only crew members are still launched aboard Soyuz rockets, but the Dream Chaser vehicle has been tested in a free flight approach without crew at Cape Canaveral. This was built by one of the contractors for ferrying crews to and from the ISS, Sierra Nevada Corp..
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Message 1901264 - Posted: 16 Nov 2017, 0:18:13 UTC
Last modified: 16 Nov 2017, 0:20:48 UTC

Elon Musk’s private space exploration firm, SpaceX, is planning to launch a secretive US government satellite known as Zuma into space Thursday night.
https://spaceflightnow.com/2017/11/15/falcon-9-zuma-mission-status-center/
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Message boards : Science (non-SETI) : SpaceX ready to launch again.


 
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