At doom’s doorstep: It is 100 seconds to midnight

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Whether green, blue, or turquoise, hydrogen needs to be clean and cheap

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An ASAT launch.

Anti-satellite weapons are creating space hazards. Here’s a way to limit the damage

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At doom’s doorstep: It is 100 seconds to midnight

By Bulletin Science and Security Board | Doomsday Clock
Russian military pilot in 2016. Credit: Министерство обороны Российской Федерации. License CC BY 4.0. Accessed via Wikimedia Commons.

Russia threatened a “military-technical” response for unmet demands. What could that mean?

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Special issue: Conflict in space

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P5 Press Conference at the United Nations, April 19, 2013. The five Nuclear Non-Proliferation Treaty (NPT) nuclear-weapon states issued a joint statement in January 2022. Credit: Eric Bridiers. Accessed via Flickr. Attribution-NoDerivs 2.0 Generic.

Five nuclear weapon states vow to prevent nuclear war while modernizing arsenals

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How greed and politics are slowing the switch to renewable energy

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US Deputy Secretary of State Wendy Sherman and Russian deputy Foreign Minister Sergei Ryabkov pose for pictures as they attend security talks on soaring tensions over Ukraine at the US permanent Mission, in Geneva, on January 10.

Putin’s demand for security guarantees: Not new and not to be taken literally, but not to be ignored

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nuclear power plant at night

Climate activists contest the EU’s “green” designation for gas and nuclear energy

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People walk past a television screen showing a news broadcast with file footage of a North Korean missile test, at a railway station in Seoul on January 11, after North Korea fired a

North Korea’s goals in 2022: internal stability and nuclear development

By Duyeon Kim | Analysis, Nuclear Weapons
An ASAT launch.

Anti-satellite weapons are creating space hazards. Here’s a way to limit the damage

By Aaron Bateman | Disruptive Technologies

Russian military pilot in 2016. Credit: Министерство обороны Российской Федерации. License CC BY 4.0. Accessed via Wikimedia Commons.

Russia threatened a “military-technical” response for unmet demands. What could that mean?

By Pavel Podvig | Nuclear Risk, Nuclear Weapons, Opinion

Special issue: Conflict in space

By Bulletin Staff | Disruptive Technologies, Nuclear Risk

At doom’s doorstep: It is 100 seconds to midnight

By Bulletin Science and Security Board | Doomsday Clock

Members of the World Health Organization (WHO) team investigating the origins of the COVID-19 coronavirus arrive by car at the Wuhan Institute of Virology on February 3. (Photo by HECTOR RETAMAL/AFP via Getty Images)

The origin of COVID: Did people or nature open Pandora’s box at Wuhan?

By Nicholas Wade | Biosecurity

The A1 Verse: No gift to set a statesman right

By Thomas Gaulkin | Special Topics

men standing on platform and looking at industrial equipment

Whether green, blue, or turquoise, hydrogen needs to be clean and cheap

By Eric McFarland | Analysis, Climate Change, Opinion

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