Telescope Array Project, Gamma-ray telescope in Millard County, United States
The Telescope Array Project spans over 300 square miles of desert terrain with 507 scintillation detectors arranged in a grid formation at 1400 meters elevation.
The facility emerged from the integration of a Japanese ground array from the 1990s and the Fly's Eye telescope system that operated in Utah from 1981 to 1993.
Scientists from Japan, United States, Russia, South Korea, and Belgium collaborate at this international research center to study ultra-high energy cosmic rays.
The surface detectors measure particle distribution while three fluorescence stations with 256 photomultiplier tubes capture ultraviolet light from cosmic ray collisions.
In 2023, the array recorded a cosmic ray with energy of 2.4 x 10^20 electron volts, the second most energetic particle ever detected on Earth.
Location: Millard County
Inception: 2007
Elevation above the sea: 1,400 m
Website: http://telescopearray.org
GPS coordinates: 39.29694,-112.90861
Latest update: March 6, 2025 12:17
Notch Peak
46.4 km
Topaz Mountain
48.9 km
Fish Springs National Wildlife Refuge
73.9 km
Yuba State Park
76.4 km
Little Sahara Recreation Area
70.4 km
Utah Territorial Statehouse
62.2 km
Black Rock Desert volcanic field
51 km
Baker Hot Springs
38.4 km
Pahvant Butte
35.8 km
Fumarole Butte
36.3 km
Fort Deseret
22.3 km
The Cinders
51 km
Harker Canyon (Tooele County, Utah)
85.8 km
Swasey Mountain
36.5 km
Kings Canyon
60.9 km
Edward and Elizabeth Partridge House
62 km
Thuesen-Petersen House
69.6 km
Scipio Town Hall
69.6 km
Peter Quarnberg House
69.5 km
Kanosh Tithing Office
68.6 km
Fillmore American Legion Hall
62.4 km
Peter and Jessie Huntsman House
62.1 km
Territorial Statehouse State Park Museum
62.3 km
Ibex Crags
65.2 km
Topaz Museum
29.3 km
Millard County Courthouse
62.4 km
Great Basin Museum
29.3 km
Paul Bunyan's Woodpile
85.9 kmReviews
Visited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes