Breaking barriers: the impact of ATLAS Virtual Visits in science communication

This paper examines the growth and impact of the ATLAS Collaboration's Virtual Visits programme, which since 2010 has successfully bridged the gap between particle physics and the global public by providing live, interactive, and language-accessible tours of the ATLAS detector and control room.

The Gist

Imagine a massive, 27-kilometer-long race track buried deep underground near Geneva, Switzerland. This is the Large Hadron Collider (LHC), where scientists smash tiny particles together at near-light speeds to figure out how the universe works. One of the giant "cameras" watching these collisions is called ATLAS. It's so huge (25 meters tall!) that it's hard for most people to visit, even if they wanted to.

This paper is about a clever project called ATLAS Virtual Visits. Think of it as a "teleportation" service for science. Instead of needing a plane ticket, a visa, or a lot of money to travel to Switzerland, people from all over the world can hop on a video call and get a live tour of the ATLAS detector and its control room.

Here is the breakdown of how this "teleportation" works and why it matters, based strictly on the paper:

1. The Problem: The "Glass Wall"

Usually, if you want to see a giant particle detector, you have to travel to CERN. But many people can't do this because of distance, cost, physical limitations, or visa rules. It's like having a ticket to a concert but living in a different country with no way to get there. The paper says this creates a "glass wall" between the public and cutting-edge science.

2. The Solution: A Live Video Tour

Since 2010, the ATLAS team has been breaking down that wall. They set up a system where a "host" (a scientist or engineer working on ATLAS) leads a live video tour.

• The Tour: It lasts about an hour. The host shows you the control room (where they watch the data) or, if the machine is turned off for maintenance, they can even walk you inside the giant underground cavern where the detector lives.
• The Interaction: It's not just a pre-recorded movie. It's a live conversation. You can ask questions, and the host answers them in real-time.
• The Props: To help explain complex ideas, they use things like a giant LEGO model of the detector or actual pieces of the machine on display.

3. How Big is the Reach? (The "Global Classroom")

The paper tracks data from 2019 to 2025. Here is what they found:

• The Numbers: They hosted 698 virtual visits in those seven years.
• The Audience: They connected with people from 69 different countries. It's not just big cities; they've reached schools in remote areas, refugee camps in Turkey, detention centers in Greece, and even a research station at the South Pole.
• The Language Barrier: Science is often spoken in English, but this program speaks many languages. They used 19 different languages (like Portuguese, Spanish, Greek, and French) to make sure people could understand the tour in their own native tongue.
• The Pandemic Effect: When the world stopped traveling in 2020, the demand for these virtual visits skyrocketed. In 2021, the number of visits jumped significantly because people couldn't visit in person.

4. Who is Watching?

It's not just one type of person.

• Students and Teachers: Many schools use these tours to kick off a lesson on physics. Some teachers in Brazil and Greece have made these visits a regular part of their school year.
• The "Unconventional" Groups: The paper highlights that they've visited groups that usually never get to see science, like students in detention centers or people in refugee camps. For them, the paper says it feels like "a window into the world."
• Open Access: In 2021, they started "Open Virtual Visits" on social media (like YouTube and TikTok). These are for individuals who don't belong to a school group. They removed the need to register in advance, making it as easy as clicking a link to join a live stream.

5. The "Hosts" (The Guides)

The people leading these tours are volunteers from the ATLAS team. They aren't professional actors; they are scientists and engineers.

• Training: They get a simple training session on safety and how to talk to the public. They often learn by watching experienced guides first.
• The Benefit: The paper notes that this helps the scientists themselves. It teaches them how to explain their complex work to regular people, making them better communicators.

6. What's the Result?

The paper collected feedback from teachers, students, and organizers. The main takeaways are:

• Inspiration: Students often say things like, "In six more years, I could be doing that." It makes a career in science feel possible.
• Curiosity: After the tours, students often go home and look up CERN on their own.
• Awe: People describe feeling a sense of wonder and excitement, especially when they see the massive machine up close on screen.

7. What's Next?

The paper says the team wants to keep growing. They are looking at using new tools like AI translation to break down language barriers even further. They also want to show more parts of the facility, like the labs where new detector parts are built, and maybe even team up with other experiments (like CMS or ALICE) to show a bigger picture of particle physics.

In a nutshell: This paper describes a successful experiment in "democratizing" science. By using video calls, the ATLAS team has turned a massive, expensive, underground machine into a classroom that anyone, anywhere, can visit for free, in their own language, and with a real scientist to talk to.

Technical Summary

Technical Summary: Breaking barriers: the impact of ATLAS Virtual Visits in science communication

Problem Statement
Particle physics research, particularly at the Large Hadron Collider (LHC) and the ATLAS detector, faces significant challenges in public engagement due to geographical, financial, physical, and administrative barriers (e.g., visa requirements) that restrict access to on-site visits. While the ATLAS Collaboration comprises approximately 6,000 members from over 100 nationalities, the complexity of the field often makes it difficult for non-scientists to appreciate its advancements. The paper addresses the need to bridge the gap between cutting-edge research and the wider public, specifically targeting audiences unable to travel to CERN, including those in remote locations, refugee camps, detention centres, and regions with limited scientific infrastructure.

Methodology
The paper evaluates the ATLAS Virtual Visits programme, an outreach initiative launched in October 2010. The methodology involves a quantitative and qualitative analysis of the programme's operations from January 2019 to December 2025.

• Operational Structure: Virtual Visits are conducted via videoconferencing and live streaming. They originate from two primary locations: the ATLAS Visitor Centre (AVC) and, during LHC shutdowns, the underground ATLAS cavern. Hosts are trained volunteers from the ATLAS Collaboration or CERN personnel.
• Data Collection: Systematic metadata collection began in January 2019. The analysis covers 698 recorded visits, tracking participation by country, language, audience type (schools, universities, community groups), and engagement metrics.
• Content Delivery: Sessions typically last one hour and include introductions to particle physics, the LHC, and the ATLAS detector structure, followed by interactive Q&A. Content is tailored to the audience's level (e.g., basic concepts for schools, technical details for engineers) and delivered in 19 different languages.
• Expansion Mechanisms: The study examines the introduction of "Open Virtual Visits" in 2021 for unorganized groups, the use of social media (YouTube, TikTok, etc.) for live streaming, and the adaptation of content for diverse groups, including special education institutions and detention centres.
• Feedback Analysis: The impact is assessed through participant feedback forms, testimonials from educators, and case studies from Brazil and Greece.

Key Contributions

1. Global Reach and Accessibility: The programme has successfully connected with participants from nearly 70 countries, extending beyond ATLAS member states to include nations without formal collaboration ties (e.g., Sri Lanka, Egypt, Iran). It has facilitated access for marginalized groups, including students in Antarctic research stations, refugee camps in Turkey, and Schools of Second Chance in Greek detention centres.
2. Multilingual Accessibility: The programme has conducted visits in 19 languages, with English (51%), Portuguese (16%), and Spanish (8%) being the most frequent. This linguistic diversity allows for engagement in participants' native languages, reducing barriers for non-English speakers.
3. Scalability and Adaptability: The shift to online platforms during the COVID-19 pandemic (2020–2021) demonstrated the programme's resilience, with a marked increase in demand in 2021. The introduction of Open Virtual Visits and live streaming on social media platforms has allowed the programme to reach individuals outside of organized group bookings.
4. Educational Integration: The paper documents the integration of Virtual Visits into formal curricula, such as in Australian high schools and Brazilian universities, often paired with International Masterclasses.

Results

• Participation Statistics: Between 2019 and 2025, the programme conducted 698 visits. The number of participating countries ranged from 17 to 34 annually. Brazil, the UK, and the USA were the most active countries.
• Audience Demographics: The primary participants are schools and universities, but the programme has successfully engaged unconventional groups. In Greece alone, a recent initiative engaged 640 schools and approximately 25,000 participants.
• Engagement Metrics: Open Virtual Visits streamed on YouTube have accumulated thousands of views, with multilingual streams (Spanish, Portuguese, Greek, etc.) attracting significant viewership from non-English speaking regions.
• Qualitative Impact: Feedback indicates that Virtual Visits inspire career aspirations in STEM, particularly among students who previously had no exposure to CERN. Educators report that the visits serve as effective introductions to complex topics like the Higgs boson and foster a sense of awe and curiosity.
• Host Engagement: Over the seven-year period, 126 individuals have hosted visits. The programme serves as a training ground for collaboration members to develop communication skills, with a core group of highly active hosts maintaining the programme's momentum.

Significance
The paper claims that the ATLAS Virtual Visits programme is a central component of the collaboration's global science communication strategy. Its significance lies in its ability to democratize access to particle physics, allowing thousands of individuals worldwide to interact with researchers in real-time without geographical constraints. The programme demonstrates that high-energy physics can be made accessible and engaging to diverse audiences, from primary school children to policymakers, through tailored, multilingual, and interactive digital formats. By fostering curiosity and providing a "human face" to scientific research, the initiative contributes to worldwide science education and outreach efforts, aligning with the ATLAS Collaboration's mission to connect frontier research with society. The paper concludes that while challenges regarding host retention and language availability remain, the programme's adaptability and continued expansion are vital for inspiring the next generation of scientists.