reply to post by lambros56
Once again, the need for clarity (pun!)
It`s amazing, the amount of crystal clear photo`s they have of Mars and yet we still can`t get any good photo`s of the moon and it`s on our
250,000 miles is our "doorstep"??
Actually, we have thousands of good photos of the Moon. Check Apollo archives....I'd link, but this thread isn't about the Moon, so go look
In any case after Apollo there was no need to send yet MORE unmanned probes to take MORE photos...of the dirt and regolith. Not much else could be
learned by mere photos, in the case of the Moon...
MARS, on the otherhand? Not so easy to get there with manned missions yet
. NOR with unmanned soil and rock sample return missions. Sure,
they'd be possible, but impractically EXPENSIVE, compared to the photographs, and the remote controlled rovers too.
I mean surely we have the technology to take photo`s from a few miles above the lunar surface.
What's a "few miles" to you? Again, why bother?? (see above).
As to a "few miles"...you do understand orbital mechanics, right?? It is not possible to "orbit" a spacecraft below a certain height above the
terrain, or planet's surface. Even on the airless Moon. Look it up. (Depends on mass of planet, and its gravity...OH, and lower and closer
to the ground the orbiting vehicle is, the FASTER it has to move to STAY in orbit...relative to the ground. Hard to get good photos that way,
But, here's the major reason to respond, and compare, and clarify:
Look at Google earth. I can see my car!
This is such a common fallacy, and misconception about GE....they use airplanes
to take those extreme close-up pictures!!! You don't
honestly think that the DoD lets Google have access to their top-secret satellite imaging capabilities, do you?
AND, one last dragon to slay...
Yet they cant show us the dark side of the moon....or can they?
The Moon rotates on its axis. Just as Mars does. Just as Earth does. Difference is, Mars and Earth spin at almost
the same rate. One
"sol" on Mars is jsut a few minutes longer than an Earth 'day'. (37 minutes and 22.663 seconds, to be precise. On average. Earth's "24
hours" is an average, too...).
SO, since Moon rotates, there is NO "dark side". It is called the "far side", usually. And, no...from where we sit, we can't sit the far side.
BUT, YOU can in photographs.
JUST as you CAN see many, many, many photos of Mars too. Taken by satellite (we don't have airplanes with cameras there, and no people to fly them,
so you won't see your car...nor Marvin the Martian's car either).
We DO have those neato Rovers, with camera, will travel!! So enjoy what we can see, until more missions achieve more results.