Viewers have expressed different opinions about what the blobs might be. According to the Daily Mail
, NASA has so far not commented on the blobs but of course, alien hunters claim that they are alien ships monitoring human activity on Mars.
According to YouTube user StephenHannardADGUK, who posted the images to YouTube, members of group called Alien Disclosure UK (ADUK), first spotted the four specks of light on images NASA made available to the public. The brought the images out in relief by applying a series of filters.
StephenHannardADGUK, commenting on the lights, said: "Four objects caught by Mars Curiosity, very difficult to make out on original image so I have used a few filters to highlight. What are these four objects? UFOs, Dust particles, or something else? As always you decide."
The Huffington Post
reports that video analyst Marc Dantonia, said the lights are only "dead pixels" in the image. He said that "dead pixels" are a regular occurrence in the world of graphics. He explained that they appear commonly in many computers and mobiles phones as well as in digital cameras. He explained: "After watching the video, it is actually quite clear that these are one-pixel sized image anomalies. I fully concur at this point that these are dead pixels on the imager. All CCD [cameras] have them, and in a bland atmosphere like that at Mars, they would be very obvious as opposed to an active atmosphere like Earth, where they could end up hidden for a long time before anyone noticed them."
In another set of images (see below
), a white light appears to be moving across the Martian horizon. Although, the images caused excitement among UFO enthusiasts, NASA experts say they are only blemishes.
The Daily Mail
reports that some viewers, however, insist they can see a speck of light traversing the Martian horizon in the images.
The Huffington Post
reports that in another film sequence, viewers claim they can see a white object lifting up from the horizon and followed by another at the left of the field of view. The Huffington Post
reports NASA has not publicly commented on the sightings.