Dr. Barry DiGregorio is resolute that snaps captured by the space agency’s Curiosity Rover earlier this year reveal extraterrestrial trace fossils on Mars.
He accused NASA – who suggested the figures pictured may be crystals – of concealing information to help its manned mission to Mars planned for the 2030s.
NASA said it was considering “multiple possibilities” after its findings.
Now DiGregorio has unveiled he will present a report in October that he claims will contain evidence aliens once roamed the Red Planet.
The University of Buckinghamshire research fellow said: “I have been invited as a keynote speaker to the 2018 Geoscience and Remote Sensing Conference that will be held in Ottawa, Ontario on October 19th and 20th.”
“There, I will present ichnological evidence for bioturbation in an ancient lake at Vera Rubin Ridge, Gale Crater, Mars.
“I will make the case that the Curiosity rover found evidence for ancient multicellular life (bioturbation) at Vera Rubin Ridge, in Gale Crater on Mars.
“The rover team continue to say the features are only crystals formed in salt water. This explanation does not fit the facts.
“First of all, it has already been shown that the lake which once existed in Gale Crater was a freshwater lake – not one with salty water.
“Plus, the features I claim are evidence of fossilized invertebrate worms do not look anything like crystals.
“The debate on this should be interesting. I look forward to it.”
DiGregorio has since insisted that he believes Mars hosted alien life in a giant lake around one billion years ago.
In any case, he accused NASA of not being straightforward over this year’s discoveries.
He speculates the agency has kept the full truth from the public because an alien discovery would weaken public motivation for it to send humans to Mars.