Slashdot Mirror
SpaceX Plans To Blast a Tesla Roadster Into Orbit Around Mars (arstechnica.com)
An anonymous reader quotes Ars Technica:
Previously, SpaceX founder Elon Musk has said he intends to launch the "silliest thing we can imagine" on the maiden launch of the Falcon Heavy. This is partly because the rocket is experimental -- there is a non-trivial chance the rocket will explode on the launch pad, or shortly after launch. It is also partly because Musk is a master showman who knows how to grab attention. On Friday evening, Musk tweeted what that payload would be -- his "midnight cherry Tesla Roadster."
And the car will be playing Space Oddity, by David Bowie; the song which begins, "Ground Control to Major Tom." Oh, and the powerful Falcon Heavy rocket will send the Tesla into orbit around Mars. "Will be in deep space for a billion years or so if it doesn't blow up on ascent," Musk added. Ars was able to confirm Friday night from a company source that this is definitely a legitimate payload. Earlier on Friday, Musk also said the Falcon Heavy launch would come "next month" from Launch Pad 39A at Kennedy Space Center in Florida, meaning in January.
"No private company has ever launched a spacecraft beyond low-Earth orbit, let alone to another planet," according to the article, adding that SpaceX's new rocket "could play a major role in any plans the agency has to send humans to the Moon." In addition, Musk added on Twitter, "Red car for a red planet."
UPDATE (12/2/17): Saturday Elon Musk told The Verge that he "totally made it up" about sending a Tesla Roadster to Mars. Then in "multiple emails" to Ars Technica --- sent Saturday afternoon -- "Musk confirmed that this plan is, indeed, real."
And the car will be playing Space Oddity, by David Bowie; the song which begins, "Ground Control to Major Tom." Oh, and the powerful Falcon Heavy rocket will send the Tesla into orbit around Mars. "Will be in deep space for a billion years or so if it doesn't blow up on ascent," Musk added. Ars was able to confirm Friday night from a company source that this is definitely a legitimate payload. Earlier on Friday, Musk also said the Falcon Heavy launch would come "next month" from Launch Pad 39A at Kennedy Space Center in Florida, meaning in January.
"No private company has ever launched a spacecraft beyond low-Earth orbit, let alone to another planet," according to the article, adding that SpaceX's new rocket "could play a major role in any plans the agency has to send humans to the Moon." In addition, Musk added on Twitter, "Red car for a red planet."
UPDATE (12/2/17): Saturday Elon Musk told The Verge that he "totally made it up" about sending a Tesla Roadster to Mars. Then in "multiple emails" to Ars Technica --- sent Saturday afternoon -- "Musk confirmed that this plan is, indeed, real."
Oh so that's what he meant when he said the rocket would have an artificial intelligence autopilot!
I work for the Department of Redundancy Department.
If the earth would be flat than we would have sunrise for all at the same time. Or no sunrise at all (in the spotlight model). Furthermore, you can test the earth curvature when looking over the ocean. Do this from high enough altitude, use your best telescope and then try to see the Eifel tower from New York. Also you can follow ships and when the water is cold you can see that the first thing to go on any ship is the lower parts and the chimney/sail can be seen for a longer time.
There is also another experiment. Have a friend who lives south or north (1000 km at least) of your place. Build two tables and insert into this a stick upright. Then place one table at your home and one at his home. The table must be perfectly horizontal. Now you collect for half a year from highest to lowest position of the sun the angle between the sun and the surface. You can do this by measuring the length of the shadow and calculating the arc with acos((l_shadow + l_stick - sqrt(l_shadow + l_stick))/( 2 * l_shadow * l_stick)). With the two angles and the distance between you and your friend, you can calculate the distance of the sun in your flat earth model and subsequently its heights above the surface. According to flat earth idea, it should be always at approx. 4000 something km.
Also you can make this experiment as follows. Use a friend east of you (the farer away the better). Every day you see a sunrise, you write down the angle between ground and sun. And at the same time your friend takes a measurement (call him and synchronize your efforts). On a flat earth you should experience sunrise at the same time. On a spherical earth this will happen at different points in time. Anyway, for your flat model, the height of the sun should be the same.
Asgardia, the Space Nation, could get a payload together in time.
The roadster is only about 1.4 tons of mass, so they should have plenty of leeway on the delta-v budget. Hell, that's not much more than the Curiosity rover weighed, and that was launched on an Atlas-V. I'm just curious if they'll do anything more with it, once they get there.
For instance, will they leave it attached to the second stage in Mars orbit, or detach it, leaving only the roadster in orbit? In that case, would they try to get some video of the car, with Mars in the background, as the booster floats away? (Pretty awesome PR stunt for Tesla...)
And what about the booster? Would they leave that in orbit too, or send it to burn up in the atmosphere? That could make for some cool imagery too.
XML is like violence. If it doesn't solve your problem, you're not using enough of it. --AC
Have you considered that the guy running the space launch company might have a better grasp of the logistics of what you're talking about than you?
-That this is an experimental launch and they're trying to minimize potential losses.
-Putting a Dragon capsule on top of it to send experiments to the ISS would be pointless because:
A. It would double the price of the launch.
B. part of the certification requirement for the government is for there to be a payload fairing on top of the rocket, and the capsule can't launch with one equipped.
C. The capsule is already volume constrained so it wouldn't be able to carry any more than a regular launch, thus failing to demonstrate the heavy-lift capability (If the car is going to Mars, it would be light, but will have a much higher velocity).
Or would you rather they wait a few years (decades?) for someone willing to build a heavy satellite that they don't mind losing?
What they're doing is not letting a precious opportunity not go to waste.
Where in any other test launch the payload would have been a block of metal mass simulator, they're doing something fun, something that will get people talking about space for decades, and some bonus advertising for his other company out of his own pocket.
Temperatures are actually not that big a deal. In the same section you linked to is detailed climate data from the Gale crater. During the day average highs range from -23C to +4C over the year which is actually warmer than McMurdo. The difference is that because the atmosphere is so thin the temperature drops extremely quick at night all year long by around 70C. But for the same reason it doesn't actually chill much. Basically if you have any kind of heat reservoir you should be able to stay pretty close to the highs rather than the lows. Atmosphere and water sure, but we have managed to run the moon missions, Mir, ISS etc. in the vacuum of space. I think radiation is the wildcard here, can we find practical shielding to all those nasty cosmic rays.
Live today, because you never know what tomorrow brings
I would send tanks of water. Harmless in a liftoff accident, very useful at Mars.