Franck Marchis
@AllPlanets
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Planetary astronomer at @SETIInstitute, CEO and co-founder of @skymapperspace, CSO and co-founder of @Unistellar, tweeting about space, our planet & us, humans
San Francisco
Joined August 2010
Here we are, alone in space on a spaceship we call Earth. I am disheartened; I thought by now we would have found our cosmic brothers and sisters to share our challenges, joys, and defeats with. But no, we are floating in this galaxy, arguing about our tiny lives and wasting the
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An interstellar visitor meets a European explorer. Right now, @ESA_JUICE is capturing images and spectra of comet 3I/ATLAS on its way to Jupiter — a rare chance to study a traveler from another star. We are living in a golden age of discovery. https://t.co/xuK5Oh4Mgq
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Congratulations to all the Democratic candidates who won tonight. It’s a reminder that when we come together around strong, forward-looking leaders who care about the issues that matter, we can win. We’ve still got plenty of work to do, but the future looks a little bit brighter.
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@addie_1122 Trump soon to break his own record for longest shutdown
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Glonass-M 2433, a GPS-like satellite launched by Roscosmos back in 2007 - observed all the way from Colorado and logged in #SkyViewer🛰️ SkyMapper is proving its readiness to track both astronomical and space objects in real time!
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I had a great conversation with planetary astronomer Ariel Graykowski about what we know — and still don’t — about the interstellar comet 3I/ATLAS. No book to sell, no project to promote — just an honest, curious discussion about the fascinating scientific questions raised by
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The new brightness curve of comet 3I (interstellar object) looks perfectly normal — but of course, it won’t stop the conspiracy crowd. Still, it’s remarkable to see scientists patiently laying out data and facts while self-proclaimed “experts” chase the spotlight with ever-wilder
We now have roughly complete magnitude data for our interstellar visitor 3I / ATLAS, up to its perihelion This includes SOHO LASCO and GOES-19 CCOR-1 data from https://t.co/V2j7zjWCXT This plot looks pretty good to me. My congratulations to all those who worked so hard on this.
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The cracks are showing. Even Republicans are turning against Trump’s absurd trade wars. The Senate just voted to kill his tariffs on Canada — and did the same for Brazil yesterday. Maybe this is the start of a rebellion against blind, illogical leadership.
cnn.com
The Senate passed a resolution aimed at ending President Donald Trump’s tariffs on Canada, with four Republicans joining Democrats to rebuke the administration’s trade policies a day after they voted...
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Justice has been served. Thank you @AlinejadMasih for your courage and determination.
Justice is beautiful ✌️🌻 They wanted to see me on the porch of my Brooklyn home, covered in blood. I wore red instead to face my would-be assassin and to celebrate life, justice, and freedom. The Russian mobsters hired by Iranian regime sent to kill me on US soil were
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☄️ What happens when a visitor from another star system drops by? Our CEO @AllPlanets and Ariel Graykowski joined @SETIInstitute’s #SETILive to discuss Comet 3I/ATLAS - the third known interstellar object ever detected! https://t.co/yMWzgE41ws
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I was part of the internal Trump administration team trying to convince the president to end the shutdown in 2018 - 2019 — for 35 days — before people went hungry, workers lost pay, and government services collapsed. Here’s what I learned: he doesn’t give a shit.
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Join us Thursday, 1PM EST for: @Skymapperspace : Project overview 🔭 @hivebits_io : Project overview 🐝🍯 @Hivemapper : MIP25 @375ai_ : TGE’d & Overview - BTC: Solo block hit @solana : Western Union stable coin @HyfixAI : Geo-Swarm drone - ROIs 👇 https://t.co/yNBeezlhaZ
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SkyMapper received a warm Canadian welcome at the Fédération des Astronomes Amateurs du Québec conference 🇨🇦 Our CEO @AllPlanets met with passionate astronomers to share our vision for a decentralized telescope network and explore partnerships to bring more Canadian telescopes
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🌏 From San Francisco to Sydney connected by #SkyViewer A SkyMapper citizen astronomer in Australia remotely captured this stunning 5-minute EV image of Comet C/2025 R2 (SWAN) using a telescope in California!
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SkyMapper CEO @AllPlanets and @SETIInstitute Exoplanet Specialist @astro_sgro joined the @SiliconZombies show for an inspired talk on: ▶️space comms ▶️our #SkyViewer platform & remote observations ▶️life & discoveries beyond our Solar System and a cool alien costume party 👽 If
SZ 198: Beyond the Stars, Pt 2 - Ft. Dr. Lauren Sgro & Dr. Franck Marchis
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Lauren Sgro and I are talking at Silicon Zombie today. You can watch it here:
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2025 US6 has been removed from the Minor Planet Center’s database. Word on the street is that it’s actually China’s DRO-B space probe, not a new mini-moon.
Another mini-moon? Maybe. Newly discovered 2025 US6 is officially listed as an asteroid. Unlike our quasi-moon 2025 PN7, this one is actually bound to Earth, for now. Its orbit is pure chaos. Enjoy it while it lasts. It’ll probably be demoted to space junk.
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Exciting news! I’m returning for “SZ 198: Beyond the Stars, Pt. 2” with the awesome Lauren Sgro, a sequel to our April cosmic adventure. This time, we’ll dive into all things SETI, wander across exoplanets, geek out about LaserSETI, and explore the universe through Unistellar
luma.com
🌌 SZ 198: Beyond the Stars Pt. 2 (+ Alien Costume Party) 👽✨ 📍 Park James Hotel, Menlo Park 🎙️ Live Silicon Zombies Experience We’re going beyond the stars…
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@AllPlanets A #DePIN network is only as strong as the people who back it. Today, SkyMapper grew, welcoming Georges Simard, our first Canadian node! 🇨🇦 Our CEO @AllPlanets personally delivered his #SkyBridge, sealing the partnership the Canadian way. Here’s to the dreamers helping us
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From decentralized finance to decentralized discovery 🌌 At @VoltCapital P2P Day, our CEO @AllPlanets introduced #SkySphere and #SkyViewer - showing how SkyMapper brings #DePIN principles to space. Welcome to the dawn of peer-to-peer astronomy 🌌
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Our CEO @AllPlanets and Comms specialist @SZSkyMapper at the American Museum of Natural History in NYC 🌉with @jfaherty and @ryanwyatt, exploring how SkyMapper can bring real astronomy into classrooms & planetariums. Because the future of space education is hands-on, connected,
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