EventsOutdoorsBusinessesSportsNewsSafety & Alerts

Footer

Live Here. Visit Here. Find It Here.

Explore

  • The Western Slope
  • Events
  • Businesses
  • News
  • Guides
  • Outdoor

Community

  • Weather
  • Emergency & Alerts
  • Preparedness
  • Local Resources

Get Involved

  • Become an Insider
  • For Business
  • For Government
  • About Us
  • Contact
  • Advertise

Legal

  • Privacy Policy
  • Terms of Service
  • Cookie Policy

© 2026 The Slope. All rights reserved.

Join The Slope Community

Create an account to get personalized recommendations and save your favorite places and events

Sign Up
    1. News
    2. Local News
    3. Vail UFO Sightings Explained by Astrophysicist
    Local News

    Vail UFO Sightings Explained by Astrophysicist

    A 40-year-old mystery of UFO sightings in Vail is explained by an astrophysicist as a natural phenomenon caused by the planet Venus.

    Sarah MitchellMay 5th, 20264 min read
    Vail UFO Sightings Explained by Astrophysicist
    Image source: Sculptor Dennis Ammerman, pictured here in May of 1986, is seen showcasing drawings as part of a campaign to build an ice palace in Vail the following winter. Vail Trail/Vail Daily archive

    What were those strange lights in the sky 40 years ago, and why did they spark a flurry of UFO sightings? The answer, it turns out, is not little green men, but rather a much more mundane explanation. As Dr. Richard Altrock, an astrophysicist with the Air Force Geophysics Laboratory, explained to the Vail Trail at the time, the sightings were likely caused by the planet Venus.

    As the story goes, multiple residents, including law enforcement officers, reported seeing a bright, color-shifting, pulsating object low in the western sky that appeared to hover or slowly descend over the course of the evening. The descriptions were certainly intriguing, and it's no wonder that they sparked a wave of interest and speculation. But, as Altrock pointed out, the sightings were likely the result of a natural phenomenon.

    "It is common to see rapidly flashing colors and multiple images as Venus approaches the horizon," Altrock said. "This is especially true when the planet is viewed over mountains or canyons." He went on to explain that high winds and turbulence from peaks and valleys create packets of air that act like prisms, fragmenting white light into different colors with each color scattered in a different direction.

    The fact that Venus was setting in the early evening on the date in question, around 9 p.m. at a spot on the horizon slightly north of due west, provides a clear explanation for the sightings. It's a clever explanation, and one that makes a lot of sense given the circumstances. The question is whether the residents of Vail and surrounding areas were aware of this phenomenon at the time, or if the sightings were truly a mystery.

    As the Vail Trail reported, the sightings were not limited to just one or two individuals, but rather were a widespread phenomenon that sparked a lot of interest and discussion. The fact that law enforcement officers were among those who reported seeing the strange lights only added to the intrigue. But, as Altrock's explanation makes clear, there was a perfectly rational explanation for what they saw.

    In this case, it's clear that the explanation for the UFO sightings is not nearly as exciting as the sightings themselves. As Altrock puts it, the phenomenon is simply a result of the way that light behaves when it passes through the atmosphere. The colors and shapes that people saw were not evidence of extraterrestrial life, but rather a result of the way that the planet Venus interacts with our atmosphere.

    The community in and around Vail is no stranger to unusual sightings and unexplained phenomena, but in this case, it seems that there is a clear and rational explanation. The fact that the explanation is rooted in science and astronomy only adds to the fascination, and serves as a reminder that there is often a logical explanation for the things that we see and experience.

    As folks around here know, the natural beauty of the area is a major draw, and the fact that the planet Venus can put on a show like this is just one more example of the wonders that can be seen in the night sky. The next time you're out and about in the evening, take a glance up at the sky and see if you can spot Venus for yourself. You might just see something that looks like a UFO, but is really just the planet doing its thing.

    As Dr. Altrock said, "This is especially true when the planet is viewed over mountains or canyons." The fact that Vail and surrounding areas offer a unique combination of geography and astronomy makes it the perfect place to see this phenomenon for yourself. So, the next time you're out and about, take a look up at the sky and see if you can spot Venus. You never know what you might see.

    In the end, it's clear that the explanation for these particular UFO sightings was not evidence of extraterrestrial life, but rather a result of the way that the planet Venus interacts with our atmosphere. As Altrock noted, "Wind and turbulence also cause single images to break up into multiple images," which can be a pretty wild sight. But, as he explained, it's all just a result of the way that light behaves when it passes through the atmosphere.

    • Time Machine: 40 years ago, UFO sightings over Vail explained
      Vail Daily
    110
    All News
    Back to all news
    All News

    Latest News

    Routt County Real Estate Sees $11.6M in Sales Amid Tight Inventory

    Routt County Real Estate Sees $11.6M in Sales Amid Tight Inventory

    June 27th, 2026·3m
    Woody Creek ranchers prove real cowgirls still work the land

    Woody Creek ranchers prove real cowgirls still work the land

    June 27th, 2026·3m
    Perry-Mansfield Students Present Wonderland at Julie Harris Theatre

    Perry-Mansfield Students Present Wonderland at Julie Harris Theatre

    June 27th, 2026·4m
    Aspen Food and Wine Festival Embraces Less Swine and Less Wine

    Aspen Food and Wine Festival Embraces Less Swine and Less Wine

    June 27th, 2026·3m
    Dr. Mark Gladwin to Discuss Climate Health Impacts at ACES Event

    Dr. Mark Gladwin to Discuss Climate Health Impacts at ACES Event

    June 27th, 2026·3m
    View all news →

    More from Local News

    View all →
    Aspen Wildfire Code Hikes Renovation Costs for Homeowners
    Local News

    Aspen Wildfire Code Hikes Renovation Costs for Homeowners

    June 27th, 2026·3m
    Forest Service Partners with Colorado Parks and Wildlife for Sweetwater Lake Management
    Local News

    Forest Service Partners with Colorado Parks and Wildlife for Sweetwater Lake Management

    June 27th, 2026·3m
    Trump’s $60B Aid Cut and 5,000 Troops Remake Washington
    Local News

    Trump’s $60B Aid Cut and 5,000 Troops Remake Washington

    June 27th, 2026·3m
    Utah Wildfire Smoke Chokes Grand Junction Air Quality
    Local News

    Utah Wildfire Smoke Chokes Grand Junction Air Quality

    June 26th, 2026·3m
    Glenwood Springs ICE Facility and Highway 82 Traffic Dominate Local Concerns
    Local News

    Glenwood Springs ICE Facility and Highway 82 Traffic Dominate Local Concerns

    June 26th, 2026·3m
    Melat Kiros Challenges Diana DeGette in Colorado 1st District
    Local News

    Melat Kiros Challenges Diana DeGette in Colorado 1st District

    June 26th, 2026·3m