Re: about that water on Mars...
- From: mrdarrett@xxxxxxxxx
- Date: 7 Dec 2006 11:07:19 -0800
Sorcerer wrote:
<mrdarrett@xxxxxxxxx> wrote in message news:1165516113.257332.63810@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
| http://www.guardian.co.uk/space/article/0,,1966153,00.html?gusrc=rss&feed=1
|
| So, how far are the Spirit and Opportunity rovers from this site?
Let's put it this way. How long will it take a skateboard rider in New York
City to get to Siberia?
New York City to Siberia? Is Mars even that large...?
Mars' equatorial diameter is 4228 miles (wikipedia), so the furthest
point from any arbitrary point on Mars has to be half the
circumference, D pi/2, or 6640 miles.
And we've got two rovers.
Well, let's see... if a rover can go 5 mi/hr, and it has 10 hr/day of
viable sunlight, and it runs for a year, it can get about 18,000 miles.
So, let's say it could take, oh, maybe 6 months to get there. Barring
any sudden dust storms, etc.
Or is 5 mph too fast for the rovers?
Michael
.
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