Regarding aspects and sizes etc, those whom compare smaller structures on Earth with what is possibly larger artificial structures on Mars and saying
"it cant be artificial because the aspect is wrong, its too big, etc" must be rather ignorant beings - what makes you think that artificial
structures made by other beings on other planets need to be built in the same scale and size as on Earth? Did it ever occur that their technology and
manpower possibly is / was far greater than humans? Thus there is no reason to say "it cant be artificial because its too big" as you simply cant
know how big or small structures these beings would build.
Some examples on Earth of big artificial structures seen from space - even with only the eye, and actually good ones to compare to the original Mars
structures in this thread:
Here is the Great Wall of China as seen from space, photo taken from International Space Station:
The red and yellow arrows point to various locations of the Great Wall - and indeed it does look pretty natural this too does it not? Yet, we all know
it is artificial. So because something may look like possibly natural formations simply because there exist similar formations that ARE natural, this
does not automatically make them natural, because in the same case there exist ARTIFICAL formations that look natural, so thus such discoveries should
not be ignored as "natural formations" that quickly - only a fool would do that instead of properly researching it.
Some more photos of the Great Wall of China taken from space, and following some quotes about it.
The wall is highlighted in the upper right. (The lower left of the image is purposely washed out; it shows a stretch of engineered waterways called
the Da Yunhe, or Grand Canal, a marvel all its own.)
Sure, spotting the Great Wall of China from space is easy with the right telescope and camera. But why couldn't China's new hero see it? He just
didn't have enough time or the right conditions, it would seem.
"In Earth's orbit at a height of 160 to 320 kilometers [100-200 miles], the Great Wall of China is indeed visible to the naked eye," says astronaut
Eugene Cernan.
A low angle of sunlight casting long shadows can help.
"You can see the Great Wall," confirms astronaut Ed Lu, who was the science officer of Expedition Seven on the International Space Station. The
station circles Earth higher than Yang Liwei's orbit.
The misconception is wrapped up in broader myths about what is and what is not visible from space. For the record: No manmade structures on Earth can
be seen with the unaided astronaut's eye from the Moon. But many things -- highways, dams and even large vehicles -- are easily spotted from
Earth-orbit with no optical aids.
What's Really Visible from Space
There is a longstanding myth that the Great Wall of China is the only manmade object visible from space. It and several variations on the theme are
great fodder for water cooler arguments. In reality, many human constructs can be seen from Earth orbit.
Shuttle astronauts can see highways, airports, dams and even large vehicles from an Earth orbit that is about 135 miles (217 kilometers) high. Cities
are clearly distinct from surrounding countryside, and that's true even from the higher perch of the International Space Station, which circles the
planet at about 250 miles (400 kilometers) up.
"You can see an awful lot from space," says astronaut Ed Lu, the science officer of Expedition Seven aboard the station. "You can see the pyramids
from space, especially with a pair of binoculars. They are a little difficult to pick out with just your eyes."
The naked eye can tell the difference between cities and countryside from space. And with a digital camera and 800mm lens, this view of Manhattan was
obtained from the Space Station on April 28, 2001.
Egyptian pyramids have been photographed from space several times with standard digital cameras and high-powered lenses. The largest pyramid at Giza,
on the outskirts of Cairo, is 745 feet (227 meters) wide and 449 feet (137 meters) tall.
"With binoculars you can see an awful lot of things," Lu wrote via e-mail in fielding a question from an Earthbound space fan. "You can see roads.
You can see harbors. You can even see ships; very large tankers on the ocean we can see using the binoculars."
There are some surprises, too.
"You can see airplane contrails, and occasionally at the end of an airplane contrail, you will see a glint of sunlight off the airplane," Lu says.
"And very occasionally, you do see other satellites go by. It is kind of a neat thing to see."
Here is an aerial photo of an area in Persia. Manmade crops and water canals etc.
Mazar Tahg ruins, China, as seen from space satellite:
The ruins are located on a bluff at the southeastern terminus of the Mazar Tagh (Shrine Mountains) range, overlooking the Hotan River. Deep in the
Taklamakan Desert, it was a strategic site for controlling north-south Silk Road trade.
Tikal ruins in Mexico seen from space by Ikonos satellite:
And finally a NASA page about various artificial Earth structures and how they are seen from space:
rst.gsfc.nasa.gov...
Notice many similarities between several of the artificial structures presented there and features seen on mars photos.
And as my final addition to this post, some comparision photos between EARTH structures, that are known to be artificial, and very similar MARS
structures:
-Maggador
[edit on 16-11-2009 by IX-777]