Marfa, Texas  has been enchanted by sightings of mysterious "ghost lights"  for over a century. The glowing balls of light of varying sizes show up in the sky seemingly randomly, and behave in ways that no man-made craft or flying animal should - like zipping from one part of the sky to the other, and disappearing and reappearing. You can travel to Marfa to observe the lights yourself, as they are a popular tourist attraction! But could they just be an optical illusion?

US Route 67 is a magical stretch of road, is that is where the famous unexplained lights of Marfa, Texas appear. Although they don't show up all the time, they show up frequently enough to earn a reputation not only in Marfa, but around the world.

Even scientists have tried to explain them. The University of Texas at Dallas studied the Marfa lights in 2004 and was apparently able to prove a strong correlation between highway traffic and the UFO sightings, deducing that the lights were just an optical illusion caused by passing car headlights, a popular theory at the time.

However, many still believe the Marfa Lights have a much more mysterious story than that, considering that their story began in the late 1800s, before car traffic even existed. Some believers have suggested that the Marfa Lights are a mirage created when cold and hot air mix (more specifically a "fata morgana" mirage), while others have suggested these lights could be electrical discharges in the atmosphere.

What do you think of the mysterious Marfa Lights? Could they be an example of weird natural phenomenon, aliens, or just cars headlights? Have you ever seen them in person?

Share your theories on this amazing phenomenon in the comments below or on Facebook, Twitter or Instagram!

• You may also like: Top Texas UFO Sightings of All Time

• When: On or about April 30th, 2016
• Where: Marfa
• What: Large saucer or bell-shaped object being transported on road
  

5/3 Update: Could this be the Space X capsule? A few people on Facebook have suggested this, and the shape is very similar:

A really incredible YouTube video has just been posted, and it shows a very large object or craft being transported on the road through Marfa, Texas, perhaps by the USO (which a witness on camera can be heard saying). A family driving to Big Bend were the ones who saw this and took the footage and uploaded it to YouTube - they are understandably curious but unsettled by the situation, and nervous about the "Men in Black." See screenshots from the video and watch it below (warning: bad language):

Have you seen this object getting toted around as well? Share your encounter.

Think you know what this could have been? A military craft? Some sort of machine? Do you recognize any of the logos or words on the trucks? Share your theories in the comments or on the Facebook page!

• When: On or about February 9th, 2016
• Where: Marfa
• What: Weather radar (not a UFO!)
  

Two investigative reporters, Nita and Rachel, were driving through Texas when they saw a UFO and were understandably curious about it, especially since they pulled over at a restricted site in Marfa to see it. Upon viewing the photos, though, the UFO can definitely be identified: it's a Tethered Aerostat Radar System, and in fact that is where the witnesses took the photo, at a TARS site:

So, if you're in Texas, especially Marfa, and you see a blimp-like object that's not quite a blimp... good chance it's radar. If you have any doubts though, report your sighting!

• When: December 26th, 2015
• Where: Marfa
• What: Red light hovering

A bright red glowing star-like object hovers over Marfa in the YouTube video below. This could have been a star or satellite or even a drone, but considering the UFO was spotted in a town famous for its strange unexplained lights, and many Texans have written in about a mysterious red object in the sky recently, this is worth checking out:

• When: September 19th, 2015 (est.)
• Where: Marfa
• What: White and red lights (seemingly) circling around each other

Really exciting footage of the Marfa lights,  a famously weird and still unexplained set of UFOs that have always "haunted" the area, has hit YouTube. But is it the real deal? Check it out for yourself and be the judge:

The video is the only one to ever be uploaded by YouTuber Haley Jane, and its description feels a bit like "click bait." Could this be a recycled video from the past, trying to be pawned off as new? Could this be a hoax? Could this be something as simple as headlights from cars driving on a hilltop road? Or drones? Or maybe, just maybe, this could be real, new footage of a natural or ET phenomena that has been with us for a while now.

Share your thoughts in the comments or on the Facebook page.

And, as always, if you've seen the Marfa lights recently, or any UFOs in Texas for that matter, report your sighting!