The U.S. National Science Foundation (NSF) Announces Decision to Close Sunspot Solar Observatory

In the article here, NSF has announced the closure of the Sunspot Solar Observatory. It will remain closed to the public indefinitely.

Following the January 5, 2026 discovery of liquid mercury on the platform inside the Dunn Solar Telescope, and the subsequent indentification of a leak originating from the main bearing, the U.S. National Science Foundation has determined that the most prudent course of action is to completely drain and remove the mercury from the site as soon as possible. This action, while necessary for safety and environmental reasons, will render the DST inoperable. At this time, and through the remediation of the DST, the visitor's center will remain closed to the public for safety purposes.

In order to ensure the safety of all workers, personnel and the public, Sunspot Observatory (including the Dunn Solar Telescope, the Visitor Center, the surrounding areas, and local hiking trails) is CLOSED TO THE PUBLIC for the foreseeable future. We apologize for any inconvenience.

On the morning of January 5th, two NMSU staff members inside the Dunn Solar Telescope (DST) observed liquid mercury on the platform. Proper safety protocols were implemented immediately to ensure the safety of both on-site personnel. The DST, the surrounding observatory building, and visitor center will remain closed until further notice while appropriate remediation measures are implemented. There is no immediate concern for public or environmental safety, and the proper authorities have been notified.

School Group Field Trip

Plan Your Field Trip to Sunspot Solar Observatory

Sunspot Solar Observatory offers a one-of-a-kind educational experience for students from Pre-K through 12th grade. Our guided field trips bring solar science to life through hands-on learning, historic exploration, and real-world connections to astronomy.

Field Trip Registration Policy

To ensure proper scheduling and availability, please register for your field trip at least three weeks in advance. Requests made with less notice will not be guaranteed.

Teachers, register your classroom for a field trip to Sunspot, NM.

General Admission

Cost: $3.00 per person (Students & Teachers)

Admission Includes:

Access to the museum and observatory grounds
A guided tour of the Dunn Solar Telescope where students will discover what our telescope observes on the Sun, explore how the telescope works and what makes it so unique, and learn what scientists have uncovered about solar activity over the decades.

Optional Learning Activities

For Pre-K through 8th grade, add an engaging, educator-led activity for just $1.00 per student.

Transportation Funding

Thanks for generous support from donors and visitors, we offer transportation funding for K-12 school field trips.

Key Details:

Funding is capped at $750 per school, per year
Title 1 schools receive priority
Funds may be applied to district or chartered buses
Gas and mileage for individual drivers are not covered

To apply, please submit an application.

Sunspot School Bus Fund Application

Chaperone Policy

All student groups must be supervised by adult chaperones. We require at least one adult for every 10 students.

Chaperones must stay with students at all times.

Weather & Walking Considerations

Sunspot Solar Observatory is located at an elevation of 9,200 feet, where weather conditions can change rapidly and may include strong sun, wind, rain, or snow – even in summer.

Please plan accordingly:

Dress in layers and check the forecast before your trip
Bring sun protection, including hats and sunscreen
Wear comfortable, closed-toe shoes suitable for walking and standing

The paved walking path around the observatory is approximately 0.5 miles with slight inclines. Prepare for moderate walking throughout your visit.

Food & Beverages

There is no food or beverage options on-site. Please bring adequate food and drinks for your group. We recommend packing lunches and water bottles for each participant. Picnic areas are available.

Buses & Parking

Bus Drop-Off: Please unload students in front of the Visitor Center
Our roundabout parking lot allows easy bus maneuvering
After unloading, buses should park on the north side of the lot
Your tour guide will greet your group at the armillary sphere outside the Visitor Center

Cancellation Policy

If you must cancel your reserved program, please notify us at least 48 hours in advance of your scheduled visit. This helps us accommodate other schools and groups.

Reserve Your Field Trip Today!

Contact: Liz Fernandez

Phone: +1 (575) 434-7190

Email: emjones@nmsu.edu

We look forward to welcoming your students for a memorable and inspiring day at Sunspot Solar Observatory!