The Hessdalen valley in Norway has been known since the 1800s for an unexplained phenomenon called the "Hessdalen Lights".

Project Hessdalen is a non-profit volunteer Citizen Science organization that studies this phenomenon.

Monthly Status Meetings

The meetings are open for all.

Events Meeting room

Become a member

Membership | Donate

Latest News

See you at the 2026 UAP Detection and Tracking Summit

All News

2026 UAP Detection and Tracking Summit - updated

We have been invited to present at the UAP Summit.

23/01/2026

Interesting Captures

There are more interesting captures now!

20/11/2025

Impressions from the SOL Symposium

We attended the SOL Symposium in October 2025.

20/11/2025

Equipment for Your Field Trip

We had FON during the Field Trip!

08/10/2025

We stream our cameras from the Blue Box live on YouTube, so you can see exactly what we record. We also create stacked images and make them freely available in our public Google Drive folder.

Use this link: hessdalen.org/drive

Read our comments on the recent findings

Use this link: hessdalen.org/recent

See you at the
2026 UAP Detection and Tracking Summit?

2026 Field Trip & Conference

Get more information about our planned Field Trip & Conference on the last weekend of August 2026

"from sensor-based data and the irrefutable evidence of the phenomenon's existence (Part 1), through scientific theory and sociological analysis (Part 2), to the first-hand testimonies of contactees and the profound questions of non-human intent (Part 3)."

📌

Sign up here to be informed about the Field-Trip and Conference:
Conference Interest Survey - FTW26

Project Hessdalen’s role is to collect high-quality, objective data and make it openly available for analysis by both citizen scientists and academic researchers.

We do not interpret the data or promote conclusions. When people report lights, crafts, or beings, we use the term UFO simply because it is the language people understand.

This conference brings together scientists, academics, and experiencers—not to provide answers, but to explore how such questions can be approached, and whether we are ready to discuss them openly.

Welcome to Project Hessdalen

Collect data

Our goal is to capture measurable, verifiable data that can be shared openly with scientists and the public worldwide.

The Blue Box is the world’s first fully autonomous, multi-sensor anomaly detection system, continuously monitoring the Hessdalen sky since 1998.

Inspire research

Hessdalen offers a rare opportunity to study a persistent natural mystery with modern tools.
During the 1984 field study, 53 phenomena were documented with instruments ranging from cameras and radar to magnetometers and infrared viewers — sparking international scientific interest that continues today.

Create awareness

We share findings through public reports, livestreams, conferences, and educational outreach.
By making our data accessible and engaging the public, we aim to promote curiosity, critical thinking, and responsible research into unexplained aerial phenomena.

Support us

Please help by giving a one-time donation
or better: Become a Member - only 5€ a month.

As a member you get Member-Only access.
(and we get to pay our internet bills)

Go to https://ko-fi.com/projecthessdalen

Latest images

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How You Can Help

Put up two posters

Fill out this form to give us an address and an email, and you will get some posters for free. You will also get some stickers and cards for free.

Inspired by the UAP Summit we could:

Create a UFODAP team

Help us raise the funds needed to buy hardware and software. Then maybe you would like to join a team to install and operate a UFODAP system?

Create a Sky360 team

Help us raise the funds needed to buy hardware and software. Then maybe you would like to join a team to install and operate a Sky360 system?

Join our development team

Want to contribute your technical skills to a real research project?

We’re looking for programmers, engineers, and technically curious people who want to help build and operate our systems. Participation can be flexible — from code contributions to hands-on field work.

Build a Raspberry Pi flight tracker

Do you know python? Can you program a Raspberry Pi? We need a system to log the activity in the air to our Cloud system.

You will get the equipment needed, and guidance from other programmers.

Here is a link to the tutorial at Raspberry Pi: https://www.raspberrypi.com/tutorials/

Show your interest by using this form: the Developer Program signup.

"Hessdalen is really a UFO-laboratory"

J. Allen Hynek, 1985

"Whatever it is, can be measured"

Erling P. Strand, 1984

"We all know that UFOs are real"

Edgar Mitchell, 1978

“Somewhere, something incredible is waiting to be known”

Carl Sagan

Sitemap

/aboutAbout Project Hessdalen08/10/2025
/blueboxThe Blue Box
/bluebox/buy-or-buildBuy or Build
/bookBook a Presentation | Request an Interview
/borrow-equipment-for-your-field-trip/fon
/camerasCamera Systems
/card/andreaAndrea/people/andrea-bucci
/card/erlingErling P. Strand
/card/fredFred Pallesen/people/fred
/card/marekMarek/people/marek-pietrow
/card/mathiasMathias/people/mathias
/card/rainerRainer Haseitl/people/rainer
/card/tanjaTanja/people/tanja
/card/tom-andreTom Andre/people/tom-andre
/cases/ascending-lightAscending Light
/current-activities29/11/2025
/current-activities/image-examplesImage Examples
/current-activities/recent-findingsRecent findings
/developerDeveloper Program
/discordDiscord Community
/donateSupport Our Work
/donatedDonor Appreciation Corner
/driveBlueBox > Camera > Drivehttps://drive.google.com/drive/folders/1ZgBdcY2WFDaCpwQCXlTdw7DKfkEapD4s?usp=drive_link
/eventsEvents
/field-tripsField Trips & Conferences
/field-trips/2024Hessdalen Field Trip Weekend & Conference 2024
/field-trips/2025Hessdalen Field Trip Week 2025
/field-trips/2026Hessdalen Field Trip Weekend & Conference 2026
/fonThe Field Observation Node (FON)08/10/2025
/help-usHessdalen is a UFO hotspot!
/how-we-workOur Way of Working: An International Volunteer Guide
/how-you-can-helpHow You Can Help
/joinJoin Project Hessdalen
/missionOur Mission
/organizationThe Organization
/papersScientific literature about the Hessdalen Lights
/perspective/fred/investigating-ufosInvestigating UFOs19/12/2025
/pictures/pictures-and-videos
/pictures-and-videosPictures and Videos of the Hessdalen Phenomena
/pressPress Releases & Media Kit
/press-coveragePress Coverage and Media Appearances
/projectsProjects You Can Join
/projects/bluebox-miniBlue Box Mini
/projects/collaborationCollaboration Engagement Project
/projects/fundingFunding Opportunites
/projects/hessdalen-llmHessdalen LLM
/projects/image-categorizationImage Categorization29/11/2025
/projects/moreYour Project Here
/recentGo to Recent Finding/current-activities/recent-findings
/report-a-sightingDo you want to report a sighting?
/reportsWitness Reports
/resourcesUAP & UFO Resource Directory
/studentsStudent work
/system-to-testDo you have a system you’d like to test out?
/system/mupasMUPAS
/system/passive-radarPassive Radar - what is that?
/testimonialsTestimonials
/theoriesThe investigation into the Hessdalen Phenomenon06/11/2025
/videos/pictures-and-videos
/volunteerWhat we need (people)