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 🚀

"People born many generations after us will perhaps have the option to decide, do I want to stay on Earth, or do I want to go somewhere else? I don't know what their choices would be." From my interview with Jeff Kluger at TIME: time.com/7326642/colo...

Excited for this to go live! My in-depth conversation with the amazing @fcain.universetoday.com over at his YouTube channel on my new book The Giant Leap and the nature of space exploration and science... www.youtube.com/watch?v=mt4X...

Excited for this to go live! My in-depth conversation with the amazing @fcain.universetoday.com over at his YouTube channel on my new book The Giant Leap and the nature of space exploration and science... www.youtube.com/watch?v=mt4X...

Thanks Mike, hope you enjoy it!

Space exploration isn't just a human endeavor; it's life itself reaching for the stars. Join @calebscharf.bsky.social, astrobiologist at NASA, as we delve into the cosmic journey of life beyond Earth on @breakingmath.bsky.social Audio only: youtu.be/-Qua8CAYcCA?... Video: youtu.be/VSEng_SkV80?...

Fun little conversation with Jeffrey Kluger at TIME about The Giant Leap and the future of space exploration is now available. (spoiler: space is undoubtedly part of our future, but it could be a slow and tricky story): time.com/7326642/colo...

New interview is up! Had a great conversation for @breakingmath.bsky.social about space and The Giant Leap

On another note - If you've not yet subscribed to @adamfrank4.bsky.social 's amazing newsletter Everyman's Universe I strongly encourage you to do so. Adam is a rare star of rock solid science and incredibly fun writing! www.everymansuniverse.com

Publication day!! 🎉🚀

Grisham, Connelly, Harper Lee - and @calebscharf.bsky.social have "have best new books" out this week! THE GIANT LEAP publlshes tomorrow

Thank you Jaime!

Tomorrow is pub day for The Giant Leap. It's been a long journey and I'm thrilled that you all get to see the results! This is the most careful, thoughtful take on space exploration that I could give you, and why it matters.

Thanks @nypost.com for listing The Giant Leap as a "best new book to read" this week! nypost.com/article/best...

New interview/podcast about The Giant Leap is now live! This was a fun conversation for @newbooksnetwork.bsky.social newbooksnetwork.com/the-giant-leap

Almost to this day 78 years ago the first images of Earth were taken from space (65 miles above White Sands in New Mexico) - part of a remarkable history of space exploration I explore in The Giant Leap (Basic/Hachette) coming Oct 21st!

Excited to share our new paper on Foundation Models for Astrobiology - this was the result of an extraordinary team and workshop laying the groundwork for the future of the search for life #Astrobiology #AI arxiv.org/abs/2510.08636

Solar storms in 1972 triggered the explosion of US magnetic naval mines near North Vietnam. In The Giant Leap I examine the greater implications of the Sun's outbursts for space exploration amazon.com/Giant-Leap-S...

What if there's a different way to handle Mars exploration than all the options usually discussed? I dig deep into this in The Giant Leap, available Oct 21st amazon.com/Giant-Leap-S...

Countdown to launch...

Among many tales in The Giant Leap is the often forgotten story of the Apollo 15 and 16 subsatellites left in orbit when the astronauts departed lunar space - and what these revealed about the Moon (Apollo 15 crew poses with subsat here) amazon.com/Giant-Leap-S...

Here we go! It’s hatching time!

Very exciting paper on arXiv today: arxiv.org/abs/2509.17231. The best evidence yet for a secondary atmosphere on an ultra-hot super-Earth. 🔭🌋 Very surprising given the theoretical predictions of rapid atmospheric escape ("cosmic shoreline") on these planets; [...]

New book! New book! My space exploration extravaganza The Giant Leap hits shelves Oct 21st but you can get 20% off with a pre-order direct from the publisher (use code LEAP25) 🙂 www.hachettebookgroup.com/titles/caleb...

This is great! Thanks for sharing 👍👍

A new 5-year mission begins! I'm so grateful to everyone at NASA Astrobiology for this opportunity to advance our search for life in the universe with @calebscharf.bsky.social and our team of amazing colleagues at @carnegiescience.bsky.social, NASA Ames, and beyond!

My new paper on lightweight deep learning for planetary imaging data is now available in its final published form at the journal Icarus as a freebie for the next 50 days! authors.elsevier.com/a/1lahj_Rp9u...

Seldom has a takedown sparkled so gloriously

The largest volcano in the Solar System, Olympus Mons. And crossing in front of it, one of the smallest moons, Phobos. Photographed from Mars orbit. Credit: Credit: ESA/DLR/FU Berlin/Andrea Luck (@andrealuck.bsky.social) CC BY

I've been exploring 'lightweight' deep learning for image reconstruction in planetary science and astrobiology: "The model is the message" arxiv.org/abs/2507.11400

New paper dropped on some of my work on deep learning and planetary science (and astrobiology): excited that this will be published in Icarus. www.arxiv.org/abs/2507.11400

In 1971 Mariner 9 became the first spacecraft to orbit another planet when it arrived at Mars. But a global duststorm meant the mission had to wait until early 1972 before it could properly examine the martian surface #TheGiantLeap tinyurl.com/29j6bktf

In 1918 Emmy Noether published what would come to be known as Noether's Theorem, cementing the universal basis of conservation laws of momentum and energy that are also key for determining how rockets and orbits behave #TheGiantLeap tinyurl.com/29j6bktf

In 1985 Japan became the 3rd nation to launch a deep space probe. The Sakigake probe (and its near-twin Suisei launched months later) were part of the Halley Comet Armada in 1986 #TheGiantLeap tinyurl.com/29j6bktf

In 1962 the Ranger 3 spacecraft missed the Moon and instead placed a half-meter diameter wooden sphere into orbit around the Sun, where it likely is to this day. #TheGiantLeap tinyurl.com/29j6bktf

Definitely reading this!