It resembles the sound of the mothership in Close Encounters of the Third Kind, or the snarl of a long-dead dinosaur crawling back out of the Earth's crust, or simply the wailing of the coming apocalypse.

Whatever it was - even if completely benign - the thundering sounds over Saskatoon recently were alarming enough, and loud enough, to stir Ernie Werezak awake and compel him to grab his camera and start recording.

According to Werezak, who posted the footage on YouTube, he was jolted out of bed by the sounds, which he says seem to be 'in the air,' around 5 a.m. last Saturday.

YouTube user GTIkitty commented on the video and confirmed also hearing the sounds.

"My spouse and I also were awoken to this strange noise," said GTIkitty.

"Was kicking myself for not recording this, so glad someone else was able to get this.

"It happened the first time at 0430 and then again shortly after 0500 early Saturday morning."

This is only the latest in a series of videos that have hit the web since early 2012 that capture strange but similar sounds around Saskatchewan.

Story continues below the video

After that instance last year, University of Saskatchewan physics professor Jean-Pierre St. Maurice told CTV News the cameras were likely picking up noise from an electrical antennae. The sounds could also be caused by electromagnetic noise in the ionosphere, he added.

"It's not actually noise," said St. Maurice.

"It's like the electromagnetic waves emitted from the aurora above our heads or emitted by the radiation belt a little bit more to the south."

Werezak told CTV he wasn't completely sold on St. Maurice's explanation.

"I guess you could take that as an answer but you never know if there's another one," he said.

Hat tip to CTV News.

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  • This is the Pioneer Plaque, one of two cosmic dog-tags attached to the Pioneer 10 and 11 spacecraft, the first human-made matter to leave the solar system. Carl Sagan and his wife Linda, along with astronomer Frank Drake, designed the plaque. It contains a map of the solar system with the path of the spacecraft, as well as images of a man and a woman, which were criticized for their nudity when the plaques were created.

  • The Golden Records, sent out with the Voyager I and II spacecraft, contain diagrams representing basic scientific concepts, but may be most notable for their inclusion of music, ranging from Chinese musician Guan Pinghu to early rocker Chuck Berry. The records will remain on the interstellar probes for their multi-millennial mission, passing relatively close to a star in about 40,000 years. If extraterrestrials can manage find these needles in the galactic haystack, they'd almost certainly be advanced enough to find us.

  • The Arecibo message, which was broadcast as a radio signal in 1974, contains a representation of the numbers 1-10, as well as various information about the chemicals that make up life on this planet. At the bottom, there's even a diagram of the picturesque Arecibo telescope. Frank Drake and Carl Sagan also contributed to the design, which is depicted here in color to remove ambiguity from the different parts of the message. We definitely can't expect a reply to this one; it will take 25,000 years to reach its target and another 25,000 before we'd receive any response. Donald Campbell, professor of astronomy at Cornell University later <a href="http://web.archive.org/web/20080802005337/http://www.news.cornell.edu/releases/Nov99/Arecibo.message.ws.html" target="_hplink">confirmed this</a>, saying, "It was strictly a symbolic event, to show that we could do it."

  • The first Cosmic Call message, sent out from a radio telescope in Ukraine, included a signal with this information. It's a sort of numerical dictionary, which matches up binary representations of numbers with the symbols that will be used to represent them in the rest of the message. Subsequent parts of the message go on to define mathematical operations and fundamental scientific facts. <a href="https://docs.google.com/viewer?a=v&q=cache:54E2DsuQ1JIJ:www.astrosurf.com/luxorion/Documents/seti-dutil-dumas.pdf+&hl=en&gl=us&pid=bl&srcid=ADGEESiKrcWWCBuKAIg6lQyKOUySNwqyHXRgmd9RcF6nWq5U6Ji3qZ4RJXzC55NvR19JhUV9I3oeoyI29jMAwXWc8-mOuJSG8bBTzxWCUvxWl-FxwMa2EREg5uDxFYpeggirJ0VWvKpU&sig=AHIEtbSFFlViE_wfSo8H2LXQFyLJq5lCCQ" target="_hplink">A detailed explanation can be found here</a>. <a href="http://www.matessa.org/~mike/dd-pr.html" target="_hplink">Canadian physicists Yvan Dutil and Stephane Dumas led the efforts</a> to send the Cosmic Call, which was sent alongside a transmission of the Arecibo message. Image courtesy Yvan Dutil and Stephane Dumas.

  • The Teen-Age Message, composed in part by teens from across Russia, was broadcast in August and September 2001. In addition to bilingual greetings in Russian and English, the broadcast includes the "1st Theremin Concert for Aliens," a series of famous melodies played on the <a href="http://www.youtube.com/watch?v=cd4jvtAr8JM" target="_hplink">electronic instrument</a>. The image above contains several glyphs representing various aspects of humanity and life on planet earth. Image: Alexander Zaitsev

  • In 2008, <a href="http://www.nasa.gov/topics/universe/features/across_universe.html" target="_hplink">NASA transmitted</a> the Beatles' 'Across The Universe' in the direction of the North Star, Polaris, located 431 light years away. The transmission was sent from a station outside Madrid that's part of NASA's international antenna array known as the Deep Space Network. It celebrated the 40th anniversary of the song's recording and the 50th anniversary of NASA's founding. When NASA notified Paul McCartney, the former Beatle told the Administration to "Send my love to the aliens."

  • <strong>NEXT ----> Scientists Claim ET Fossils In Meteorite</strong>

  • Polonnaruwa Meteorite -- Dec. 29, 2012

    Pictured is a small piece of a meteorite that fell near the ancient Sri Lanka city of Polonnaruwa on Dec. 29, 2012. Using a scanning electron microscope, scientists at the U.K.'s Buckingham Center for Astrobiology and Cardiff University produced the following images. Note: the measurements on the images are indicated in micrometers. To understand how small these fossilized objects are, 1 meter = approximately 3 feet, while 1 micrometer = 1 millionth of a meter.

  • Diatom fossil from the Polonnaruwa meteorite

    The following images look like something from a science fiction movie, but were produced with a scanning electron microscope focused on a meteorite that reportedly fell in Sri Lanka on Dec. 29, 2012. This first image shows a diatom (algae) fossil at high resolution from the Polonnaruwa meteorite.

  • Another fossil from Polonnaruwa meteorite

    An embedded fossil from the Polonnaruwa, Sri Lanka meteorite.

  • Filamentous fossil diatom from Polonnaruwa meteorite

    Pictured is a fossil diatom (algae) with frustules, or walls, showing intricate microstructure.

  • Ovoidal ribbed structure in the Sri Lanka meteorite

    This ovoidal, or egg-shaped, ribbed structure was found in the rock matrix of the Polonnaruwa, Sri Lanka meteorite.

  • External layer of a algae fossil found in Polonnaruwa meteorite

    This is an image of the external layer, or frustule, of a diatom (algae) fossil found enmeshed in the rock matrix of the meteorite that fell near Polonnaruwa, Sri Lanka, on Dec. 29, 2012. The next slide is an extreme close-up of this image.

  • Close-up of previous slide

    This is a close-up electron microscope image of the previous slide, showing the intricate layering (frustule) of a diatom (algae) fossil found in the meteorite which fell in Sri Lanka on Dec. 29, 2012. Scientists who research these microstructures are convinced it represents proof of extraterrestrial life.