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Tianran Xu

Jaewoo Shin

April 23, 2020

A Tale of Two Missiles: Analysis of KCNA Reports on DPRK's KN-23 and KN-24 Short-Range Ballistic Missiles

Since May 2019, the Democratic People's Republic of Korea (DPRK) has repeatedly tested two new solid-fuel short-range ballistic missiles (SRBM). Unlike liquid SRBMs such as the SCUD-B/C, the KN-23 and KN-24 missile systems have different designs, means of transportation, and launch methods. However,...

April 14, 2020

North Korea Fires Multiple Suspected Cruise Missiles In 'Larger Scale' Military Drill

The combination of the two military exercises was described on Twitter by Melissa Hanham, deputy director of the Open Nuclear Network in Vienna, as “one of North Korea’s larger scale drills to date.”

April 01, 2020

OEF's Open Nuclear Network Programme Joins European Non-proliferation and Disarmament Network

Open Nuclear Network joins the European non-proliferation and disarmament network (EUNPD), a collection of think tanks combating weapons of mass destruction and their delivery systems.

Tianran Xu

March 23, 2020

Analysis of the KN-25 Multiple Rocket Launcher System after the 9 March 2020 DPRK Test

The Democratic People's Republic of Korea launched at least two "super-large calibre" multiple rocket launcher rounds into the Sea of Japan or East Sea on 9 March 2020. It is the sixth confirmed test launch of the system, with a total of at least 12 such rockets having been launched since it was dev...

March 13, 2020

Experts: N. Korea’s Recent Launches Tested Missiles To Target S. Korea

North Korea’s recent missile launch tests have nuclear weapons experts around the world on watch and weighing in on the tension unfolding across the Korean Peninsula.

March 10, 2020

Open Nuclear Network: A New Open Source Data Peace Initiative to Reduce Nuclear Risk

ONN combines open source data technology with a multinational team of experienced analysts and researchers, and its expert coordination of a global Engagement Network of accomplished individuals who are well positioned to open doors for dialogue among global leaders.

March 10, 2020

New Programme Aims to Reduce the Risk of Nuclear Weapons Use

Open Nuclear Network was officially launched today, a new non-aligned non-governmental organization with a mission to reduce the risk of nuclear weapons use in response to human or technical error, uncertainty or misdirection.

New Nuclear Reduction and Monitoring Program

March 06, 2020

Meet Nuclear Analyst Tianran Xu

I study missiles and nuclear delivery systems to better understand capabilities and ways to build strong, verifiable agreement and reduce the risk of nuclear weapons systems.

March 06, 2020

Meet Nuclear Analyst Jaewoo Shin

I use open source data, statistics and machine learning to understand evolving trends related to nuclear risk reduction. Our current focus is the Korean Peninsula which, on a personal level, I obviously care deeply about.

Jaewoo Shin Analyst Open Nuclear Network

March 06, 2020

Meet Nuclear Analyst Veronika Bedenko

My semi-scientific background is very helpful in understanding and analysing the technical developments of North Korea's nuclear program and I also bring an understanding of the global non-proliferation context.

March 03, 2020

OEF Nuclear Programme Provides Perspective on Risk Reduction Methods

Melissa Hanham joined other experts for a panel discussion to share her perspective on issues of nuclear risk reduction in the Hague.

March 02, 2020

"North Korea Marks Year of Failed Trump Talks with Missiles" by Jihye Lee for Bloomberg

Based on the limited information available, the projectiles appear to be the KN-24 - a solid-fuel, short-range ballistic missile - or a multiple rocket launch system, said Melissa Hanham, a weapons expert and Deputy Director of Open Nuclear Network.

February 12, 2020

"Hackers Could Shut down Satellites - Or Turn Them into Weapons" by William Akoto for The Conversation

ONN was featured in The Conversation.

December 15, 2019

Kim Jong Un Bolsters Nuclear Threat To U.S. As Trump Talks Stall

“If you launch one or many of these at South Korea, you have between seconds and minutes to decide if this is a conventional attack, a nuclear attack or some other WMD payload,” said Melissa Hanham, deputy director of the Open Nuclear Network, a weapons expert specializing in the analysis of satelli...

December 10, 2019

OEF's Open Nuclear Network Programme Supports Call for Ethical Standards in Imagery Analysis

How does one know when publishing a satellite image may put bystanders in harm's way?

December 05, 2019

"Rafael Grossi Isn't America's - or Iran's or North Korea's - Man" by Stephanie Liechtenstein for Foreign Policy

"I believe U.S. President Donald Trump and [North Korean] Chairman Kim Jong Un share the need for a win on this," said Laura Rockwood, who worked for the IAEA for 28 years in several high-level positions and currently serves as the Director of Open Nuclear Network.

December 05, 2019

North Korea Missile And Kim Jong-un's 'Christmas gift' decision

"We haven't seen any activity which would indicate that there's an impending test," said Melissa Hanham, an expert on open-source intelligence and director of the Datayo Project at the One Earth Future Foundation.

November 30, 2019

"North Korea Seeks Pompeo's Removal from Talks, Tests New Weapon" by Seyoon Kim, Youkyung Lee and Justin Sink for Bloomberg

The weapon was likely a short-range rocket system, or something that was ground tested, said Melissa Hanham, a non-proliferation expert and Director of Open nuclear Network’s Datayo Project.