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Official Twitter for the Space Security Studies Group, Centre for Science & Security Studies at King’s College London

Oxfordshire & London, England
Joined September 2014
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BREAKING: A U.S. startup is developing spacecraft that can assemble themselves in orbit, potentially enabling massive satellites to build, expand and repair themselves in space. Rendezvous Robotics has raised $20 million to develop modular, roughly 1-meter-wide hexagonal tiles that use electromagnetic forces to autonomously connect, creating structures far larger than what a single rocket could launch. The technology could enable satellites to expand their solar arrays, antennas and computing systems after launch, or replace damaged components without launching an entirely new spacecraft. Backed by Toyota Ventures and MaC Venture Capital, the company plans to test 32 self-assembling tiles aboard the ISS in December, followed by a 2028 demonstration involving seven independent tiles assembling and reconfiguring in orbit.
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Space Security retweeted
After Kosmos 2612 painted a bullseye on ICEYE-X36, the Russian official who called commercial satellites “legitimate targets” now says concerns are “unfounded.” arstechnica.com/space/2026/1…
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Space Security retweeted
Have you all seen Trump’s announcement of his SUPER PUTIN DEAL? Russia promises to immediately supply more than 300,000 tonnes of diesel to the market, including the US, followed by another 500,000 tonnes in November. Then come promises of EVEN BIGGER volumes. Because the deal has to be HUGE. At least in the post. OFAC, of course, wasted no time issuing a temporary waiver until April 7 to accommodate the president’s latest “GENIUS” deal. Except the BIG DEAL is not actually that big. More of a stage prop. Very Trump. Let’s do the maths. Actual numbers. TERRIBLE, I know. 300,000 tonnes is roughly 2.2 million barrels of diesel. 500,000 tonnes is roughly 3.7 million barrels. In September, Russia managed to export just 0.1 million barrels. Basically none, as there is export ban. So Putin has already “sold” Trump a volume 22 TIMES larger than Russia’s entire September exports. Making promises is, of course, easier than rebuilding refineries after Ukrainian strikes. MUCH EASIER. SOME SAY THE EASIEST. Meanwhile, Russia’s diesel export ban remains in force until October 31: the fuel is needed domestically, and Ukrainian drones have significantly reduced Russia’s ability to produce it. A VERY SUCCESSFUL phone call with Trump is unlikely to have fixed those problems. Now for another comparison. Russia’s average monthly diesel exports last year were 18.3 million barrels. The promised deliveries amount to just 12% and 20% of that volume, respectively. So we have a promise that Russia still needs to find a way to fulfil, given the state of its refineries. And even if delivered, it looks considerably less impressive than the presidential CAPS LOCK. Not quite THE GREATEST DEAL IN HISTORY. The political logic is clear. The war with Iran and high fuel prices are a bad backdrop for the elections. One would hope politically FATAL, at this point. The administration desperately needs a story about how the president is about to FIX EVERYTHING. Preferably IMMEDIATELY. Preferably without explaining how we got here in the first place. So perhaps the main product of this deal is not even diesel. It is another attempt to calm the market with a BIG, BEAUTIFUL ANNOUNCEMENT. Let’s see how much credibility these announcements still have. Russia, of course, will sell this as a HUGE VICTORY. And why wouldn’t it? Promise diesel you still need to find somewhere, get a sanctions waiver UPFRONT. Plus another opportunity to tell the world that it simply CANNOT MANAGE WITHOUT RUSSIA. But what worries me most is that this spectacle could weaken our European partners’ resolve. Trump’s latest “breakthrough” must not become an excuse to ease sanctions pressure on Russia — precisely when that pressure needs to INCREASE. Of course, this decision will benefit Russia by generating additional revenues. We’ll be watching how much of its export capacity Russia actually manages to restore. One thing is CLEAR: Ukrainian strikes on Russian refineries need to INTENSIFY.
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First Release Of USAF’s New HACM Hypersonic Cruise Missile Has Happened Over Australian Range The US and Australia are partners on the Hypersonic Attack Cruise Missile, which has finally reached flight testing after major delays. twz.com/air/first-release-of…
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Space Security retweeted
ICEYE does satellites. @nokia does communications. Today we announced that together we do sovereign satellite communications. Read more: hubs.li/Q04ySlhY0
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Space Security retweeted
North Korean Hypersonic Glide Vehicle (HA 11 Ma) test. This is very significant weapon, bringing Hypersonics to the operational/tactical arena and pose a challenge to the air and missile defense systems.
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Space Security retweeted
Exclusive: Deep in Arctic waters near the remote Svalbard archipelago this spring, NATO allies caught Russian subs training to unleash a secret weapon designed to disable critical undersea cables without leaving any fingerprints reut.rs/4AaYl02
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BREAKING: A Chinese military reconnaissance satellite has suddenly broken apart in orbit, creating a new debris field that could remain around Earth for decades. China’s Yaogan-50 (02) fragmented into at least 43 tracked pieces while flying in an extremely unusual retrograde orbit, traveling against Earth’s rotation at altitudes reaching roughly 1,000 km. The spacecraft belonged to China’s secretive Yaogan remote-sensing program, widely associated with military intelligence and reconnaissance. The cause of the breakup remains unknown. It comes just days after OST reported that the Chinese Long March 6C rocket stage fragmented in orbit, while previous Long March 6A breakups have already generated more than 1,000 pieces of debris since 2022. Due to a lack of atmospheric drag at this altitude, fragments from Yaogan-50 (02) could remain there for decades, creating a long-lived collision hazard for other spacecraft.
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I think this is the most sci-fi shot I’ve ever seen. Straight out of The Expanse.
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U.S. Army Secretary Driscoll: Ukraine's Delta common operating system, their modular open system architecture command and control system, is absolutely incredible. It fully integrates every single drone, sensor, and shooting platform into just one single network. Ours does not.
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This is AI detection of planes… done in space! Done with @Nvidia Jetson Orin modules on our Pelican spacecraft. The point here is speed: this was done within minutes of image capture – so summary analysis can get to users faster, enabling real time action. It’s part of the shift to planetary intelligence: we’re connecting our satellite’s “eyes” with the AI “brain” 🧠📡 Congrats to the @nvidia & @planet teams on this milestone! investors.planet.com/news/ne…
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This is the V Force, designed to carry out nuclear strikes on every Russian city with over 100,000 people in it in the event of WW3. How did the UK decide its target plans, and how did it plan to defeat Russia in war? Long PSL thread on early British nuclear war plans.
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New particle accelerators can turn nuclear waste into electricity, and cut the radioactive lifetime by 99.7% by converting radioactive isotopes via neutron bombardment This could recycle the entire US commercial used nuclear fuel stockpile in 30 years interestingengineering.com/e…
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Space Security retweeted
Pakistan successfully launched its second indigenous electro-optical satellite, PRSC-EO2, on February 12, 2026. Developed by SUPARCO, the satellite aims to enhance the country’s Earth observation and high-resolution imaging capabilities. The launch took place from a sea-based platform in China.
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Hypersonica, an Anglo-German defence start-up developing what it describes as a sovereign European hypersonic strike capability, has completed its first successful hypersonic test flight in Norway. Click image for more. ukdefencejournal.org.uk/euro…
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On this day in 1972, Apollo 17, the last crewed lunar landing mission of the Apollo program, landed on the Moon in the valley of Taurus-Littrow. More on Apollo 17: s.si.edu/31ynOVK
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