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

Some of the most recent UFO sightings in Northern Colorado sound like they can be drones, others are probably airplanes, but others are a complete mystery - could they be aliens?

Below are the most recent sightings reported to the National UFO Reporting Center by witnesses.

  • 1

    Red-orange diamond greets Longmont on New Year's Day

    4 or 5 red/orange lights moving West. One went down closer to the ground. No sound.

    Location: Longmont, Colorado

    Occurred: January 1, 2016, at 12:15 a.m.

    Shape: Diamond

    Duration: 20 seconds

  • 2

    Frightening encounter with pulsing lights in Lafayette

    The sky was pitch black but when looking towards the South/West I saw an object(s) with numerous lights. One of the lights was pulsing a purplish white type color and it was almost blinding and the light was vastly bigger than all the other lights near it or around it. It was placed in front of a smaller light that was blinking and it had a blue hue to it. Then to the right of those two lights was a light that was white and yellow and stayed on continuously along with another light to the right of it that was pulsing a light red and white light that would pulse in some type of code type thing... Then directly to the left and a little below all of those lights and next to the pulsing purplish light was a bright yellow light that was much smaller then (sic) the rest of the lights. They were all basically bunched together and doing the pulsing, blinking, etc, simultaneously.. Then it began to rise up and move towards me .. There was absolutely no sound... I've seen many a craft before but, nothing like this... it was a God awful vibe I never want to witness again so I'm not sure how long it lasted because I ran inside after 10 minutes...

    Location: Lafayette, Colorado

    Occurred: January 12, 2016, at 2:10 a.m.

    Shape: Unknown

    Duration: 10 minutes

  • 3

    Suspicious red light flies over Loveland pasture

    My husband called me and told me that there were lights over the mountains towards the west and I looked and saw quite a few, like 5, but my husband said that there were 15 They slowly went out one by one.

    After 5 minutes went by, one single red light was already past our house and near my mother's house! She lives east of us I was in her pasture and it was like a stop light flying right at me!! My husband has video footage of the event but won't share it with me. The light I saw was so bright and it didn't make a sound. It flew left, then right, and then proceed (sic) to fly toward me and then slowly went out. I tried to get video of it, but my phone couldn't catch it.

    Location: Loveland, Colorado

    Occurred: January 24, 2016, at 6 p.m.

    Shape: Formation

    Duration: 15 minutes

  • 4

    Green, big-headed creeps in Greeley?

    I cannot believe I'm doing this but - what I saw I can certainly not say it was an airplane or anything reasonable.

    Yesterday was really foggy in Colorado. On my way back from Boulder, I saw at least 3 blocks from my house 3 red lights up in the sky but in a shape that would add up to the shape of a UFO. I laughed at myself for thinking that but as I watched it it was going VERY fast for an "airplane." I thought it was a jet but the red spaced out lights made it look much bigger than that. It was higher up in the sky and was traveling about (my guess) 6 or 7 times faster than an airplane. The solid red lights started to blink rapidly and then the "object" literally went so fast to the right my eyes couldn't keep up with it. It just "BOOM" flew to the right and was GONE.

    I tried to search for some reasonable explanation for what this thing was. It wasn't an airplane or jet so the only other thing I could think of was some sort of military craft like those really huge "silent bombers" but where I saw this "UFO" is not anywhere near a military base. And I gotta tell you (with my experience living right next to a marine base) this did not move as fast as one of- what I saw. So, to kind of wrap it up here, I do believe now that what I saw wasn't something that should have been seen, and I'm going to have a really hard time trying to unsee it. But to make something clear, I think that there are other planets out there - more - beyond our imagination, so maybe this thing that I saw is just an airplane to some normal people like us. Hopefully not some green big headed creeps...

    Location: Greeley, Colorado

    Occurred: Feburary 4, 2016, at 6:30 p.m.

    Shape: Unknown

    Duration: 10 seconds

  • 5

    Following the O from Estes Park to Glen Haven

    Bright light with attached string of lights in Eastern sky of Estes park...I was traveling west on CR43 from Estes Park to Glen Haven. Saw a bright light in the Eastern sky which was not moving. The object was at approximately a 30 degree angle above the horizon. Was a clear night.

    Looked like O____ The O was a bright white light with the ____ attached to the O with varied colored lights which were not blinking. Looked at object up to my home location lane. Followed the object all the way up my lane. Was not facing the object when exiting my auto; when turned around to obtain a better view of the object; it was gone.

    Location: Estes Park/Glen Haven, Colorado

    Occurred: February 4, 2016, at 9 p.m.

    Shape: O____

    Duration: 3 minutes

  • 6

    Glowing balls fly over Greeley

    2 orange glowing balls in the air not flashing red or white like airplanes, traveling very slow then one cut west and slowly disappear (sic) then other follow after.

    Location: Greeley, Colorado

    Occurred: February 17, 2016, at 7 p.m.

    Shape: Fireball

    Duration: 5 minutes

  • 7

    Drunk UFO in Fort Collins?

    Dark red object flies fast in weird directions over night sky.

    My fiance saw something red in the distance and called me to come look, and we saw a dark red toned object flying through the sky. There were no lights on it but it did seem to reflect red.

    At first it seemed like a satellite but then it started swerving its direction back and forth. Within a minute, it had flown out of our sight, way too fast to follow, and disappeared into the night sky.

    Location: Fort Collins, Colorado

    Occurred: February 27, 2016, at 8:05 p.m.

    Shape: Other

    Duration: 2 minutes

  • 8

    Mysterious circular objects bound for Larimer County

    It was cloud coverage, but I can see the circular objects they did not flash but they went from white to a red when they flew by there was no noise the 2 came from the east and flew across the house and flew to the west towards Ft. Collins and Loveland.

    Location: Greeley, Colorado

    Occurred: March 12, 2016, at 1:12 a.m.

    Shape: Circle

    Duration: 3-4 minutes

  • 9

    Mischievous drone flying over Fort Collins?

    7500-9000ft this object approximately stationary 20 seconds above where I was playing basketball and then it moved out east faster than anything I've ever seen move before, and that only took seconds before completely vanishing.

    During broad daylight!

    Triangular shaped, reddish amber colored!

    Location: Fort Collins, Colorado

    Occurred: March 26, 2016, at 2:30 p.m.

    Shape: Triangle

    Duration: 24 seconds