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SAFECAST
@safecast.org
International volunteer driven non-profit focusing on open environmental data || safecast.org
(日本語) safecast.jp || safecast.eth
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Our Ukraine Radnote realtime radiation sensor project in collaboration with SaveDnipro and Blues has been making great progress, with some important milestones reached recently: 43 sensors deployed, 40 more recently delivered. Read about it in our blog update:
safecast.org/ukraine-upda...
Reposted by SAFECAST
Right now @tiger.bsky.social is in Ecuador/ Amazon rain forest collecting sound and light data, as well as radiation measurements with her @safecast.org bGeigie!
July 19, 2025 at 4:10 PM
Reposted by SAFECAST
Thanks to Azby Brown of @safecast.org for talking to our Northeastern University Dialogue of Civilizations students about his work in citizen science and radiation / environmental measurement
July 21, 2025 at 1:10 AM
Our Ukraine Radnote realtime radiation sensor project in collaboration with SaveDnipro and Blues has been making great progress, with some important milestones reached recently: 43 sensors deployed, 40 more recently delivered. Read about it in our blog update:
safecast.org/ukraine-upda...
July 28, 2025 at 1:57 AM
Nuclear engineering student Margo Cicero wrote a report of her recent SAFECAST fieldwork in Fukushima for our blog:
safecast.org/fukushima-fi...
Fukushima Fieldwork Report – Safecast
safecast.org
June 11, 2025 at 11:21 AM
Reposted by SAFECAST
❗️Last night, a Russian high-explosive combat drone hit the shelter over the nuclear reactor at Chornobyl Nuclear power plant - President Zelenskyy.

Radiation monitoring comes back as normal so far - Ukrainian Emergency services.

Russia is a danger to humanity.
February 14, 2025 at 8:07 AM
Reposted by SAFECAST
More images of Russia's drone damaging the Chornobyl Nuclear power plant shelter structure.

The shelter covers the nuclear reactor that exploded in April 1986 and locks in the radioactive components after the catastrophe.
February 14, 2025 at 9:01 AM
Safecast/SaveDnipro RADNOTE realtime radiation monitoring units inside the Chornobyl Exclusion Zone show no increase in levels following today's Russian drone attack on the Chornobyl NPP. Official sensors also show no increase. Data can be seen on the SaveEcoBot online map: shorturl.at/NoYwy
Radiological maps in Ukraine online: radiation background monitoring - SaveEcoBot
Find out the exact level of the radiation in your city of Ukraine. Online data from more than 500 stations. Updating data hourly
shorturl.at
February 14, 2025 at 9:52 AM
Announcing the first @safecast.org + @climatedatasafe.bsky.social Climate Data Hackathon, Dec. 27-28. Join us online: www.climatedatasafe.org/event/0-hack...
Is our Climate Data Safe? It is not. Join the global #Climate #Data #Hackathon Dec 27-28, 2024 online. www.climatedatasafe.org/event/0-hack...
December 26, 2024 at 11:40 PM
Join the Safecast 2025 New Year's Party, Sunday January 12, Shibuya, Tokyo! Tickets at peatix.com/event/422810...
December 26, 2024 at 11:35 PM
Holiday sales for the Safecast Store is starting for now till 31 December 2024 Use coupon code BGFS01 and save 10% off on all products. bgeigiezen.safecast.jp
December 11, 2024 at 12:54 AM
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This is a core idea at @safecast.org as well - in many ways “success” looks like us no longer needing to advocate and educate. If we do our job well enough, we make ourselves obsolete.
The network should outlast the company
Bluesky is a PBC (public benefit corporation) with the mission “to develop and drive large-scale adoption of technologies for open and decentralized public conversation.”

From the start, our goal has been to build a decentralized social network that is usable by the mainstream.
November 24, 2024 at 4:14 PM
Reposted by SAFECAST
Ok looks like Russia fired off a nuclear-capable IRBM.

bsky.app/profile/gbru...

Not great but continuation of Russia’s use of nuclear capable weapons as part of compellence operations (eg, use & discourse of use of Kinzhal).

IF the RS-26 then not an ICBM (except technically kind of)
There are some unconfirmed that provide some clues.

They appear to show six "clusters" of munitions coming down very quickly.

The high angle of attack (aka from straight up) suggests it is some kind of long range ballistic missile, which would go high into space and come back down...
November 21, 2024 at 4:21 PM
Reposted by SAFECAST
Phew! What a wild day of missile monitoring! But I think the facts are converging on a pretty clear picture of what Russia launched and what it means.

Short 🧵
November 21, 2024 at 9:01 PM
Reposted by SAFECAST
If this MSNBC story about courts-martial is confirmed, I'm begging people - especially writers and reporters - do not fall for the Trump line that this is about Afghanistan. This is about Trump seeking revenge on the people who woudn't him do things like shoot American protesters.
November 17, 2024 at 12:44 AM
Reposted by SAFECAST
While Elon mocks Ukraine, Russia is carrying out one of the biggest missile barrages on Ukrainian cities in recent months. Millions of civilians in shelters, explosions in Kyiv, Dnipro, Rivne, Lviv and Mykolaiv, as critical infrastructure and power stations targeted ahead of the winter.
November 17, 2024 at 7:43 AM
Reposted by SAFECAST
There is now some hard evidence that X boosted the Trump campaign and suppressed the Harris campaign. What's to stop Musk from doing the same in other countries?
www.threads.net/@profsander....
Sander van der Linden (@profsander.vanderlinden) on Threads
New computational analyses from the University of Queensland on algorithmic bias suggest that the X algorithm substantially boosted Republican accounts right after Elon Musk's endorsement of Donald Tr...
www.threads.net
November 17, 2024 at 6:13 AM
One of our major ongoing projects is providing RADNOTE solar-powered cellular wireless radiation detectors to Ukraine, with our partners at SaveDnipro. The installed fleet is now up to 35 units, with more being added weekly. Read about it here:
safecast.org/our-independ...
Our independent realtime radiation monitoring network in Ukraine is now up and running! – Safecast
safecast.org
November 17, 2024 at 6:42 AM
Some recent big news, we've rolled out our newest bGeigie model, the bGeigieZen. More capable, more features, but simple to build and to use. safecast.org/safecast-int...
Safecast introduces our latest open-source Geiger counter: The bGeigieZen – Safecast
safecast.org
November 17, 2024 at 6:38 AM
Hello everyone. We're making the migration as well after almost 15 years at the other place. We held on because it had been such an important means of information gathering and fact-checking during disasters, which is a big part of our core mission. Please help others find us! safecast.org
November 17, 2024 at 6:36 AM