UFO sightings are nothing new - but they're especially enchanting when they appear in our own backyard.

Below are the 7 most recent UFO sightings in Northern Colorado, as reported to the National UFO Reporting Center.

  • 1

    Dim triangle over Greeley

    There was a dark triangular [sic] very large in the sky. It produced an odd sound and had dim lights. It went in a smooth track and disappeared into the sky.

    Location: Greeley, Colorado

    Occurred: September 27, 2015

    Duration: 7 seconds

    Shape: Triangle

  • 2

    Flashing lights in Longmont

    2 triangular flashing lights, one doesn't move at all and the other does. 3 triangle lights flashing at different rates. One triangle is not moving but flashing, the other triangle is moving away from the other. Appears far away, seen better with binoculars. Lights are red white and green and would flash quickly then slowly and blink. Soon the one not moving went in the direction of the other and faded into the darkness and couldn't be seen anymore.

    Location: Longmont, Colorado

    Occurred: October 9, 2015

    Duration: 10 minutes

    Shape: Triangle

  • 3

    Mysterious triangles over Spring Canyon Park

    Witness 1: A friend and I were at Spring Canyon Park, Fort Collins CO, having a conversation, when I noticed what appeared to be a kite like object gliding through the air above me. I could barely distinguish it from the darkness of the sky, but I could see it enough to determine a shape. It was a V-shape with five dark grey circles, two on either side and one in the middle. It was maybe 500 feet in the air and moving slightly faster than that of a plane making absolutely no noise. My friend did not notice this first sighting, so I took him to the other side of the park in hopes that it would return. At 8:15pm, we both noticed what looked like a similar craft to that of the first sighting gliding north to south more to the west then [sic] the original craft. We then decided to lay down and sk [sic] watch hoping to see another craft. At 8:27pm we noticed a very large craft roughly 500 feet in the air. It was noticeable larger than the other two. noticeable this craft was a different shape. this one being ! a wide set isosceles triangle. It flew northwest to southeast directly over us at a lower altitude than the other two crafts and this time it flashed many intricate small lights over us before it disappeared.

    Witness 2: at around 7:55 my friend claimed that he saw a V-shaped UFO in the sky. I was a little skeptical at first, however I was intrigued, so I decided to listen to what he had to say. we proceeded to skywatch in different locations around the park and at 8:15pm he spotted a V-shaped craft again this time I was quick enough to catch a 3 to 5 second glimpse before it vanished into the night sky. I felt like we should stay and see if it would return again. we found a place to lie down and watch the sky. My friend noticed yet again it coming before I, however it was undoubtedly visible and different than the previous craft. Around 30 small intricate lights lit up overhead. the craft made no noise at all and as it passed us, the lights dimmed until the craft vanished.

    Location: Fort Collins, Colorado

    Occurred: October 16, 2015

    Duration: 40 minutes

    Shape: Triangle

  • 4

    Fireball over CSU

    Fireball Over Colorado State University Flashing Red and Green Colors Before Imploding Into Night Sky, Leaving A Trail Of Smoke.

    Location: Fort Collins, Colorado

    Occurred: October 16, 2015

    Duration: 1 minute

    Shape: Fireball

  • 5

    Silent chevron moves through Longmont

    Saw a dark grey chevron shaped object in the sky moving slowly and silently. I could see details on the craft such as small round light shapes that were not illuminated and lines/ridges. The backside of this boomerang-shaped craft was web-shaped like a duck's foot. I saw it as it passed over our house from one grove of trees to another. I had just gotten home from work and I always look up at the night sky before I go inside. It seemed close, but my husband explained that it is difficult to judge in a night sky. I was not frightened, I was in awe.

    Location: Longmont, Colorado

    Occurred: October 16, 2015

    Duration: 10 seconds

    Shape: Chevron

  • 6

    Fireball spooks Fort Collins residents on Halloween

    Seen Over Fort Collins During Halloween. Object appears to only appear during local events; last seen during CSU Homecoming on 10/16/15. Object lasted the same amount of time, and obtained the same physical features as the previously reported fireball.

    Location: Fort Collins, Colorado

    Occurred: October 31, 2015

    Duration: <1 minute

    Shape: Fireball

  • 7

    Lights dance over Greeley

    5-8 lights rotating around each other across sky, then disappeared. I was in my car with three friends near a field when we saw 5-7 lights going across the sky rotating around each other. We got out and watched the lights for 3 minutes after taking multiple pictures. It soon disappeared into the night.

    Location: Greeley, Colorado

    Occurred: November 23, 2015

    Duration: 3 minutes

    Shape: Light