Need a last-minute gift? FINAL ORBIT has been on the best-seller list for 10 weeks straight!   "Nail-biting action ... an entertaining read."  Available in all formats, wherever you buy books.  chrishadfield.ca/books/final-...

This round, delicate Christmas ornament is actually a 214 million-year-old asteroid scar in Quebec. The crater is 72 km across, now filled with water for hydroelectric power. When I was an F-18 pilot, we flew around it 200 ft above the ice. False-colour image by @esa.int esa.int/ESA_Multimed...

Good-looking new-tech plane. Hybrid-electric 50-100 seater, being built by Montreal's @evioaircraft.bsky.social, 450 pre-orders. Uses @prattandwhitney.bsky.social PT6's mated to electric motors for 200-500 nm routes. Fuel-efficient, multi-role game changer. First flight 2029. shorturl.at/wT75Q

Some tweets are pure fun. I grew up with Star Trek, so was thrilled to have William Shatner contact me while I was living on the International Space Station. We’ve since gotten to know each other - the first 2 Canadian spaceship captains :) And since then, Bill flew in space!

Vienna at night, from space. To take a picture like this with a handheld camera and long lens, we astronauts have to wait between heartbeats, as they pulse your whole weightless body and blur the image. This and more tonight, my 19:30 show at the Globe Wien! Tickets: oeticket.com/en/event/chr...

A fun, far-ranging conversation on where we are at this moment in space exploration, on writing fiction novels, and on finding the ever-elusive meaning of life. go.ted.com/ZZfWN Thanks @whitpennrod.bsky.social and TED!

Proper ticket link: www.oeticket.com/en/event/chr...

Vienna! Tomorrow night at the GLOBE WIEN, my 5-star Journey Into the Cosmos show - ideas, images, audience Q&A, und kleine nachtmusik. Photos from the packed hall in Zagreb, by Filip Bušić. Tickets: oeticket.com/en/event/chris…#Viennana

Very cool new Croatian cover for Astronaut’s Guide to Life on Earth! Elegant and whimsical. I’m greatly looking forward to tonight’s show in Zagreb, 19:30 at Lisinski Hall - almost sold out, a few more tickets: lisinski.hr/hr/dogadanja... #zagreb #croatia

Sometimes when you're an astronaut on a world speaking tour, a stranger hands you his patented plans for a spaceship. I admire the detail, and signed a copy for him. What would you do next?

Moonlight over Serbia. I’ve always been a window seat guy, even on spaceships. The rest of the world and universe puzzles and fascinates me. And I like to see that that big propeller smoothly turning.

Thank you, #Brno, for the warm welcome, busy Christmas markets, castle tour and churches, and all the people who came to my talk. So much fun! Headed to #Beograd today, speaking at the MTS Dvorana Saturday night! Tickets: mtsdvorana.rs/dogadjaj/chris…#Serbiaia

Beograd, Serbia, from space, on a winter's day. I'm speaking at MTS Dvorana Saturday night. "Profoundly inspiring!" Tickets: mtsdvorana.rs/dogadjaj/chr...

"Profoundly inspiring" Lovely review of my Istanbul show, A Journey Into the Cosmos. I'm performing in Brno tonight, with Vienna, Beograd and Zagreb to come. Tickets: chrishadfield.ca/central-euro...

I wasn’t prepared for this CBC interview, so the conversation really made me reflect. How do you think about the importance of kindness in your life? Especially at this time of year and in history. Might be worth 15 minutes of your time. www.cbc.ca/listen/live-...

Merch! Everybody likes merch! Very much looking forward to tonight’s Istanbul show, kicking off my Journey Into the Cosmos Central European tour! Prague next, then Brno, more to come! #zorlucenter #ıstanbul

Looking from Europe into Asia, across the Bosporus. Istanbul is where I started growing a moustache, on my 18th birthday. I’m here for a talk, A Journey Into the Cosmos, at the ⁦Zorlu Center ⁩ - tonight! #Istanbul

TONIGHT, live at Massey Hall! Amazing cast of people, ideas, comedy and music - don’t miss it! Tickets: masseyhall.mhrth.com/tickets/chri...

This is what I looked like before I grew a moustache :) Oddly, I clearly remember that rattle! The feel and even the hollow plastic sound of it. What’s your earliest memory?

My Massey Hall GENERATOR show is tomorrow night! Last-minute tickets: masseyhall.mhrth.com/tickets/chri... A crazy fun evening of ideas, possibility, comedy & music. See you there!

Even ancient volcanoes erupt. A reminder of the immense energy stored inside our Earth, waiting there, just under the cooled crust we dance so casually upon. Great space image by my friends @planet.com !

Just 2 days left - don't miss GENERATOR! tickets: masseyhall.mhrth.com/tickets/chri... A rare evening of very cool ideas, positivity, comedy & music.

Just 3 days left until GENERATOR at Massey Hall! Tickets available - masseyhall.mhrth.com/tickets/chri... 🎤Stories from Earth, space and beyond ✨An unforgettable evening of inspiration and ideas 🎵Music by @twrpband.bsky.social See you there, Toronto!

tickets: masseyhall.mhrth.com/tickets/chri... Generator is a crazy, unique mix of cool ideas, fascinating guests, comedy and surprising music, in legendary Massey Hall. It's my favourite night of the year, this Thursday - don't miss it!

This was such a fun photo to set up, taken by Thomas Reiter through a sleep station window on Mir. The sun was so bright we were all squinting like crazy. But I love how it shows the texture of the Shuttle's rough, protective hide, and the glimpse of humanity (and my moustache) against the universe.

When the Sun burps, the ejected blob typically weighs 2 trillion tons, going a million mph, sometimes directly at us. Likely a big factor in Earth's early development of life: kyoto-u.ac.jp/en/research-... @kyotouniversity.bsky.social (2012 video from NASA: youtu.be/sg3NAdOYp8Q)

Beyond amazing to be #1, 2, 4 and 5 bestsellers this week! Thanks @winnipegfreepress.com!

Signing/personalizing all my books today until 1 o’clock at AvWorld, 191 Carlingview Dr, Toronto! One stop Christmas shopping for your aerospace fan.

8 days until Generator at Massey Hall - don’t miss it! Tickets: masseyhall.mhrth.com/tickets/chris-…

These 10 satellites, built in Toronto, are launching in early January. A network of laser data communications between space, air, & ground. Go, go Kepler team! kepler.space/kepler-annou...

Good morning! GEN is for GENERATOR - at Massey Hall on the 27th. My crazy show of ideas, comedy and music - don’t miss it! Tickets: masseyhall.mhrth.com/tickets/chri...

Toronto - if you'd like a signed, personalised new novel, come by Av World on Wednesday from 10AM to 1PM - get Christmas gifts on your lunch break! 191 Carlingview Drive Toronto

How to write a novel and choose what to do in life - thanks @mattearoach.bsky.social and CBC for the interview! www.cbc.ca/books/booken...

Some places are so beautiful they’re surreal. Victoria, British Columbia, Canada

Henry’s being kind to the kitten.

Thank you Vancouver International Writers Festival for the fun night with everyone! I signed all stock @blackbondbooks.bsky.social - makes a nice Christmas present!

Taylor Swift and I are at Costco together. Dreams really do come true.

Thanks Calgary - a very fun discussion together at ⁦Wordfest. Enjoy reading FINAL ORBIT!

Good morning Calgary-on-the-Bow!

In Winnipeg, signing all of my books @mcnallyrobinson.com - Christmas is coming!

Recognise the city? (I’m in a plane full of fans & staff for Sunday’s @cfl.ca Grey Cup)

If you live in the red area & your skies are clear, go outside & look north tonight! @noaa.gov

On a cold & stormy Florida morning I first left Earth. Shuttle Atlantis's power was staggering, crushing & shaking us for nearly 9 minutes to make the sanctity of orbit. 30 years ago today.

I love my winter country. Kills the big bugs.

Just signed all my books in stock at Barnes and Noble Wiregrass in Tampa - get ‘em before they’re gone! @barnesandnoble.com

Tomorrow is 11 Nov - Remembrance Day. I wear a poppy to honour all soldiers, but especially my great-grandfather John Austin Hadfield, and his younger brother Vic who was killed in the hell of Passchendaele, in Flanders Fields, where poppies grow. en.wikipedia.org/wiki/In_Flan...

When asteroids slam into Earth they create a warm, wet local environment. These 3 guys dug through 78-million-year-old core samples to show how quickly life moves into the hellscape, to understand Earth history. news.westernu.ca/2025/09/life... @westernu.ca @linneuni.bsky.social Canada & Sweden

Dropped by Orlando Barnes & Noble East Colonial, and signed all their in-store stock.

Mars launch today - good luck sticking the barge landing for the first time, Blue Origin! watch live stream: youtube.com/live/WUuH9fw... (images: Blue Origin)

Seek the sunlight in your life, always. Be optimistic - it’s harder than pessimism, but far more joyful. You choose how to live.