Back around May of 2013, a man in Japan scoured dozens of NASA photos taken by the space agency’s Mars Curiosity rover. What he found was a figure which seemed to resemble either a rodent or a lizard.  The image which (hopefully) appears above is somewhat uncanny. (You can also do an image search on “Mars rat”.)
Reports the Huffington Post, “The alleged Mars rat should not be confused with a similar sighting first pointed out in December: An image taken by the Curiosity rover at the ‘Rocknest’ site in September  shows a rodent-like figure that most closely resembles a squirrel.” 
More recently, as of January 19, 2014 it was being reported that a “mysterious Mars rock” has been seen. An unusual “doughnut shaped” rock suddenly appeared where it hadn’t been just weeks before.  (Image above, hopefully.)
About the Mars rock, “NASA scientists are perplexed, and have never seen anything quite like this before. Furthermore, it is unlike anything else they’ve seen on Mars itself to date.” 
On November 20, 2013 Ersjdamoo’s Blog carried a report on a “face on Mars” which had been photographed by Viking 1 on July 25, 1976. “One author has noticed what seem to be pentagonal monuments on Mars. In a region of Mars called ‘Cydonia’ an eerie face had been noticed. Studying this ‘face on Mars’ and its vicinity, Richard C. Hoagland concluded there was ‘redundant tetrahedral geometry’ at Cydonia.” (Background: Our Friend, The Ether (Part 23), Ersjdamoo’s Blog entry of November 20, 2013.)
In his book, Dark Mission: The Secret History of NASA, Richard C. Hoagland (with co-author Mike Bara) gives in-depth coverage to the “face on Mars.” In 1990, Hoagland had worked on an educational project dealing in part with Cydonia for which he was nominated for a “Point of Light” award by President George H.W. Bush’s Point of Light Foundation. First Lady Barbara “Babs” Bush herself visited Dunbar Senior High School in October 1990 in connection with Hoagland’s “Point of Light” effort. Reportedly, the Jet Propulsion Laboratory, a NASA field center in California, panicked at the fact of the First Lady “tacitly endorsing the notion of artificial ruins at Cydonia by her sheer presence at a Hoagland project…” 
“There is no greater authority on Earth in the field of gravitation and orbital motion, in my considered opinion, than Dr Tom Van Flandern,” writes dissident astronomer Hilton Ratcliffe in his book, The Virtue of Heresy. In 1993 Van Flandern published a popular science masterpiece called Dark Matter, Missing Planets and New Comets. In that book, according to Hilton Ratcliffe, Van Flandern included “a bit of qualified conjecture about a landform on Mars that has become known as ‘the face at Cydonia’. Tom claimed that the shape of the hill was beyond reasonable doubt an artificially created rendition of a human face.” 
If these things – the Mars rat, the strange Mars rock, the “face at Cydonia”, and others not here mentioned – are indeed artificial creations, the next question is, who exactly made them? And what were they doing on Mars?
“Oh, tut tut, Ersjdamoo. We can trust NASA to tell us about these things,” (some might say). However there is a specific reason why NASA would not tell us about extra-terrestrial artifacts if they had been found: The Brookings Report. “Proposed Studies on the Implications of Peaceful Space Activities for Human Affairs”, often referred to as “the Brookings Report,” was a 1960 report commissioned by NASA and created by the Brookings Institution in collaboration with NASA’s Committee on Long-Range Studies. The report has become noted for one short section titled, “The implications of a discovery of extraterrestrial life,” which examines the potential implications of such a discovery on public attitudes and values.” 
Hoagland and Bara (op. cit.) summarize relevant key conclusions of the 1960 Brookings Report:
- Artifacts are likely to be found by NASA on the Moon and/or Mars.
- If the artifacts point to the existence of a superior civilization, the social impact is “unpredictable.”
- From number 2 (above), the Brookings Report surmised various negative social consequences as distinct possibilities.
- Serious consideration should be given to withholding such information from the public if, in fact, artifacts are discovered.
WARNING: A “DREADED CONSPIRACY THEORY” FOLLOWS
My theory: That strategic leaks of such as “face on Mars”, Mars rat, etcetera are being done by NASA itself to “test the waters” for how the public might react to full disclosure of artifacts of an advanced extra-terrestrial civilization, and that the artifacts in fact are already known about by the upper echelons of NASA. I do not believe that such persons as Richard Hoagland are “in the loop” on this but are honestly responding to the strategically leaked puzzling images.
——- Sources ——-
 “Mars Rat? Blogger Spots ‘Creature’ In NASA Curiosity Rover Image”. Huffington Post, May 29, 2013. (Updated May 30, 2013.)
 “NASA Scientists Perplexed by Mysterious Mars Rock Unlike Anything They’ve Ever Seen Before”, published by Julie Kent. The Cleveland Leader, January 19, 2014.
 Dark Mission: The Secret History of NASA, by Richard C. Hoagland and Mike Bara. Los Angeles, CA: Feral House, 2007
 The Virtue of Heresy: Confessions of a Dissident Astronomer, by Hilton Ratcliffe. Available as a Kindle e-book