My interview on Planetary Radio about The Giant Leap and the past, present, and future of space exploration is now available! www.planetary.org/planetary-ra...

New podcast about The Giant Leap just dropped : www.planetary.org/planetary-ra...

If Alien Signals Reached Earth, Why Haven't We Seen Them? astrobiology.com/2026/02/if-a... #astrobiology #SETI #technosignature

Excited to share preprint of my new research: The Interplanetary Habitable Zone - habitability for space-faring species. A maths framework & agent-based simulation approach: arxiv.org/abs/2602.13404

You know it's a good science day when you get to write "boundedly rational utility maximizers" in an astrobiology research paper

Why might our future in space look more like living on Deep Space Nine than colonizing other planets? Dr. @calebscharf.bsky.social explains on this recent episode of Strange New Worlds: A Science & Star Trek Podcast! soundcloud.com/strange-new-...

New planet just dropped and it 1) is almost exactly Earth-sized 2) has a year that's almost exactly 1 Earth year. 3) orbits a star that is not a 💢temperamental little shit M-dwarf 💢but is instead a 🧡 good orange boi 🧡 Me for @science.org based on results presented at #RockyWorlds4: 🔭🧪

Yup

If you want to know what it's like when two scientists who really enjoy each other's company sit down for a conversation about science, space, and life in the universe, well here's the answer:

I can attest that this is a terrific book!

@nautil.us has this excellent series of "greatest revelations" from authors and others. I got to have my turn in talking about The Giant Leap and the things it revealed to me along the way... nautil.us/space-explor...

Thrilled to see a great review of The Giant Leap over at the @wsj.com ! “A scintillating tour of mankind’s explorations in space so far.” 😀 www.wsj.com/arts-culture...

For a moment this phrasing gave me a nice vision of pigs sitting around discussing ancestry…

New interview about The Giant Leap is now available - many thanks to Smithsonian Associates and Paul Vogelzang for a terrific conversation! podcasts.apple.com/us/podcast/t...

This is just incredible and lovely! Life in the abyss.

I haven’t stopped thinking about this frog since learning about it a few days ago, so now this knowledge is your problem too. Meet the turtle frog (Myobatrachus gouldii) – a round burrow gremlin from Australia. It gets its name from looking like a turtle that lost its shell. 📸 Stephen Zozaya

Thanks @brianclegg.bsky.social for such a thoughtful review! Delighted that the book was of interest!

It's Friday, the holidays are upon us, what better time to read a book about the amazing enterprise of space exploration, and what it means for life on Earth!

Another conversation about my new book The Giant Leap (@BasicBooks) is now live! Space exploration is such a rich topic and it stirs so many viewpoints, it's very fascinating. convergingdialogues.substack.com/p/456-the-fu...

New conversation about my book The Giant Leap and quite a lot more - life in the universe, data, and the future of space w. Brad Carr: www.youtube.com/watch?v=g5Kd...

This image shows 3D, millimeter-thick, and cell-embeddable semiconducting hydrogel fibers. These fibers can be used to construct interwoven living transistors that mimic real neuronal connections in the brain, redefining the boundary between technology and life. Learn more: https://scim.ag/4rqTOCj

I am puzzled by Bluesky: posts here seem to have a really hard time being seen by...well, anyone. Maybe I'm just losing my touch...

In my new book I explore the complex history of space exploration and its staggering impacts on human life and all life on Earth - for better or worse. To see what the future might bring we have to place space into context, as fundamental change to evolutionary possibilities.

A must listen…!

ICYMI had a terrific time talking with @adamfrank4.bsky.social for this @bigthink.com interview about The Giant Leap (Basic Books) and the implications of space exploration for the near and far future of life on Earth. bigthink.com/13-8/the-nex...

Marvelous new image of interstellar Comet 3I/ATLAS, taken by photographer Satoru Murata before dawn this morning. On the right you can also see galaxy NGC 4691. There should be a lot more pictures coming in soon. 🧪🔭 www.facebook.com/groups/22700...

Great news!

ICYMI: Last week, @calebscharf.bsky.social asked us to imagine space exploration as life’s next "Giant Leap" during our most recent #NeighborhoodLecture. We pulled out 5 of the most mind-blowing ideas and posted the full recording here.👇🤯 carnegiescience.edu/five-ways-ca...

New video! My full presentation about The Giant Leap to a live audience at @carnegiescience.bsky.social is now online! We grappled with science, philosophy, and the meaning of life! www.youtube.com/watch?v=cG1V...

Now on @sciam.bsky.social: In his new book, The Giant Leap, NASA astrobiologist @calebscharf.bsky.social says the fate of life on Earth may hinge on leaving our planet behind. www.scientificamerican.com/article/is-s...

Simultaneously beautiful and the stuff of small human nightmares...

A topic that has come up in interviews and presentations for my new book The Giant Leap is reconceptualizing the notion of habitability for a planetary system (like ours) where life disperses from its point of origin. I use this graphic to help discuss: [1/n]

Indeed…definitely the B Ark

A new, fun conversation with Lyn Ware Peek at Cool Science Radio for NPR's KPCW all about space exploration and my new book The Giant Leap: www.kpcw.org/show/cool-sc...

Ah yes, back to the horrors of NYC 🤣

Congratulations Jason! Amazing!

I'm excited to be heading to DC later this week to give a public talk at the amazing @carnegiescience.bsky.social about the ideas in my new book The Giant Leap! carnegiescience.edu/giant-leap-nls

The solar system represents scales of space, causal connection, and resources that life on Earth has not encountered before. What will this do to us and to all life as our efforts to explore and experiment in space expand? This is a major theme of The Giant Leap.

The solar system represents scales of space, causal connection, and resources that life on Earth has not encountered before. What will this do to us and to all life as our efforts to explore and experiment in space expand? This is a major theme of The Giant Leap.

Wow, the 10,000 th Starlink satellite was recently launched. The growth of space enterprise is hard to ignore - and is something I discuss in my new book The Giant Leap in the much larger context of the history of life on Earth

The two physicists who detected the neutrino in 1956, Frederick Reines and Clyde Cowan, had wanted to put their detector 50 metres from the destination of an atomic bomb! In the end, they settled for a nuclear reactor. www.hive.co.uk/Product/Marc...

The man who predicted the existence of neutrinos, Wolfgang Pauli in 1930, bet a case of champagne that nobody would ever detect them. “I have done a terrible thing, I have postulated a particle that cannot be detected” - Wolfgang Pauli www.hive.co.uk/Product/Marc...

For the 1st time in 4 billion years, life has escaped its home planet! Join NASA Ames astrobiologist @calebscharf.bsky.social as we venture into the void to see how space exploration is reshaping our next great leap. 🗓️ 11/6 | 6:30 PM EST 📍 Carnegie Science, NW DC & Online 🎟️ RSVP → bit.ly/4qxBBT7

Teaching chatbots to say “I don’t know” could curb hallucinations. It could also break #AI’s business model. https://scim.ag/49cPY9d

Potentially contentious idea: space exploration is less about ignoring Earthly problems and more about giving ourselves a chance to do better...

Looking forward to it!

Major events in the history of life are often about new possibilities for evolution. In The Giant Leap I contend that the emergence of space exploration is just one such event.

I'm going to be on Elevation with John Kelly tomorrow on U2 X-Radio (yep, that U2, on SiriusXM) talking about my new book The Giant Leap!

"Certainly human exploration beyond Earth orbit ground to a halt after Apollo. But the rest of space exploration has just barreled ahead." ...and that story is part of The Giant Leap (quote from my new interview at TIME): time.com/7326642/colo...

@calebscharf.bsky.social’s last book, “The Ascent of Information,” literally changed my career trajectory. I can’t wait to find out where “The Giant Leap” will take me 🚀