Official Twitter account of the Nevada National Security Sites. We Secure America's Future.
Las Vegas, NV
Joined July 2009
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In partnership with @NewsRTSNV, NNSS volunteers contributed over 135 hours to revitalizing local homes and neighborhoods for National Make A Difference Day.
Did you know? A team of NOAA meteorologists is dedicated to tracking weather conditions across the Site.
Larger than the size of Rhode Island, the Site includes diverse landscapes and a wide range of elevations, making accurate forecasting all the more important.🌈
As @NASA prepares to return to the moon, the NNSS’s unique terrain offers an irreplaceable environment for testing equipment and operational concepts.
Learn more: nnss.gov/news/article/the-ar…
NNSS Scientist Jill D. joins the Nevada Test Site Historical Foundation's Board of Trustees, further extending the longstanding partnership between the NNSS and the @AtomicMuseum.
Read more: nnss.gov/news/article/nevada…
📰 NEWS: The NNSS, @LosAlamosNatLab, and four other National Labs partnered to earn a prestigious R&D 100 Award for a groundbreaking facility monitoring system known as the Persistent DynAMICS.
Details: nnss.gov/news/article/nnss-c…
Nevada National Security Sites retweeted
Shipra De, ‘11, the UNLV College of Engineering Alumna of the Year, leads data and business intelligence analysts at the Nevada National Security Sites while helping connect UNLV students with industry opportunities.
Meet Shipra: bit.ly/4AHt58X
NNSS Fire & Rescue joined the community this weekend at STEM Saturday to kick off National Fire Prevention Week. Students met our Fire & Rescue team, learned about fire safety, handled fire and medical equipment, and enjoyed the opportunity to try spray a fire hose.
If foreign countries test in secret, we will know.
This week, NNSA successfully conducted a non-nuclear experiment that enhances our ability to detect global explosions.
The goal? Keeping the U.S. one step ahead. 🇺🇸
More here: energy.gov/nnsa/articles/nns…
Nevada National Security Sites retweeted
If foreign countries test in secret, we will know.
This week, NNSA successfully conducted a non-nuclear experiment that enhances our ability to detect global explosions.
The goal? Keeping the U.S. one step ahead. 🇺🇸
More here: energy.gov/nnsa/articles/nns…
📰 NEWS: NNSS begins Phase II of its Mercury Modernization Program, representing a decade of innovation, planning, execution and dedication come to life.
Details: nnss.gov/news/article/mercur…
Thank you to @NNSANews Principal Deputy Administrator Scott Pappano for your recent visit to the NNSS. We value the opportunity to showcase our specialized capabilities and the incredible workforce behind the latest technological advancements in national security.
Nevada National Security Sites retweeted
NNSA Principal Deputy Administrator Scott Pappano recently spent a full day at the Nevada National Security Site.
From PULSE to P-Tunnel, Principal Deputy Administrator Pappano got an inside look at modern stockpile management and deterrence capabilities in action.
His visit also spanned the historic Sedan Crater and the Mercury Shooting Range, highlighting both the rich legacy of @NNSANevada and the daily protective force operations that keep the site safe.
Nevada National Security Sites retweeted
This Labor Day, NNSA honors the world-class scientists, engineers, skilled workers, and specialists across our Nuclear Security Enterprise.
Day in and day out, their hard work delivers a modern, resilient nuclear deterrent to protect our nation and our allies.
Driven by a mission of deterrence, urgency, and production, our people are the backbone of national defense.
Drop a 👏 in the comments to thank the men and women of the NNSA keeping America safe!
Happy Labor Day! Today we recognize and thank each of our employees at the NNSS for their contributions to securing our nation’s future. 🇺🇸
STEM Saturdays are back at the @AtomicMuseum! Each month, the NNSS presents a free, interactive demonstration in science, technology, engineering or math.
Join us for our next event: nnss.gov/community/nnss-outr…
STEM Saturdays are back! Join us this weekend at the @AtomicMuseum for a free and interactive demonstration on electro-magnetism.
Register now: events.nnss.gov/4vD0ew
NNSS employees sorted, packed, labeled and stacked produce and canned goods with @threesquareLV last weekend, providing support to thousands of families in the Southern Nevada community. #HungerFreeSNV
Solving the nation’s most complex national security challenges requires more than federal resources alone. Learn how the NNSS lowers research barriers and drives concrete operational advantages with Cooperative Research and Development Agreements: nnss.gov/news/article/partne…
Nevada National Security Sites retweeted
NNSA partnered with law enforcement partners across the country, and deployed 200+ Nuclear Emergency Support Team (NEST) professionals to protect the @FIFAWorldCup in the Department of @ENERGY's largest-ever preventative radiological and nuclear detection mission.
NEST personnel from the Radiological Assistance Program (RAP) – America’s premier first responder organization for assessing radiological incidents – fanned out across the country to protect World Cup venues using advanced radiation detection systems.
The mission was the result of years of planning with federal, state, local, tribal, and international partners. It was made possible by the dedicated workforce, who left their families and daily roles at labs, plants and sites nationwide to serve. 🇺🇸
Happy #NationalAviationDay! NNSS employees recently completed the 2026 Aviation Safety Officer Workshop, marking a significant milestone in federal flight risk management that will help enhance the management of NNSS restricted airspace. #EMAwarenessMonth
