Relax as we explore the daunting question of whether humanity will ever journey beyond the stars. From the vast distances of space to the limits of technology, this soothing story unpacks the challenges (and the quiet hope) of interstellar travel.
Where are you watching from, and what time is it there? I’d love to hear in the comments—it’s always wonderful to see how far and wide this sleepy little community reaches.
If this helped you relax or stirred your sense of wonder, feel free to like the video and subscribe for more peaceful science stories to fall asleep to.
Wishing you a quiet night, wherever in the cosmos you may be.
Does quantum mechanics actually imply that every possible outcome of every decision happens somewhere in an expansive reality? And if so, what does that mean for probability, free will, and our understanding of the universe itself?
Brian Greene sits down with David Deutsch, widely regarded as the father of quantum computing, to examine what many physicists are still reluctant to accept about their own theory. They explore why the many-worlds interpretation isn’t just a philosophical curiosity, what the wave function is really telling us about reality, and how decision theory may rescue probability in a fully deterministic multiverse. Deutsch also introduces constructor theory, his framework for rethinking the foundations of physics entirely and explains why the questions we’ve been trained not to ask might be the most important ones in all of science.
This program is part of the Rethinking Reality series, supported by the John Templeton Foundation.
Participant: David Deutsch. Moderator: Brian Greene.
A technique inspired by the film Interstellar suggests a new way of communicating backwards in time, but it could help improve conventional communication systems as well
I talk about the science of Project Hail Mary and why it makes the story feel so grounded, exciting, and believable.
From microbes in space to the real challenges of long-duration space travel, this section looks at how the movie uses science as more than just background decoration. It also gets into why stories like this feel so refreshing right now, because they make curiosity, intelligence, and problem-solving feel dramatic again.
This is a conversation about the real science behind Project Hail Mary, what NASA’s work has to do with the movie, and why science fiction can still inspire wonder.
That would mean generations upon generations of human lifetimes, all lived out on board a rocket ship travelling across space, in the hope of a comfortable utopia waiting for us when we arrive.
Now, a team of researchers say they’ve demonstrated a form of light-driven propulsion that could one day get us to Alpha Centauri in 20 years.
A team of researchers at the J. Mike Walker ’66 Department of Mechanical Engineering at Texas A&M University say they’ve demonstrated lasers can be used to lift and steer objects without physical contact.
The Hashemite Kingdom of Jordan signed the Artemis Accords Thursday during a ceremony hosted by NASA at the agency’s headquarters in Washington, becoming the latest nation to commit to responsible space exploration to benefit humanity.
“It is my privilege to welcome Jordan as the newest signatory to the Artemis Accords,” said NASA Administrator Jared Isaacman. “By signing the accords today, Jordan brings valuable perspective and capabilities that will help expand the Golden Age of exploration for all mankind. They join at a pivotal moment, as we take the accords principles and put them into practice with humanity’s return to the Moon. Through Artemis, we’re going back to the lunar surface, with contributions from our international partners, to build a Moon Base and to stay.”
Ambassador Dina Kawar of Jordan signed the accords on behalf of the country. U.S. Department of State Acting Principal Deputy Assistant Secretary for Oceans and International Environmental and Scientific Affairs Ruth Perry also participated in the ceremony.
The most expensive part of space travel isn’t the fuel. It’s the cargo. Additive manufacturing isn’t a sci-fi magic trick; it’s the key to building shipyards and telescopes at scales rockets were never meant to handle. We aren’t just launching ships anymore; we’re moving the factory to the void.
Get Nebula using my link for 50% off an annual subscription: https://go.nebula.tv/isaacarthur. Watch my exclusive video Settling Saturn’s Rings: https://nebula.tv/videos/isaacarthur–… out The Anatomy of the Nokia 3310: https://nebula.tv/videos/realengineer… 🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall… 🌐 Visit our Website: http://www.isaacarthur.net ❤️ Support us on Patreon: / isaacarthur ⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-a… 👥 Facebook Group: / 1,583,992,725,237,264 📣 Reddit Community: / isaacarthur 🐦 Follow on Twitter / X: / isaac_a_arthur 💬 SFIA Discord Server: / discord Credits: Additive Manufacturing in Microgravity Written, Produced & Narrated by: Isaac Arthur Select imagery/video supplied by Getty Images Chapters 0:00 Intro 2:10 Additive Manufacturing Is Not a Printer 8:04 The Physics of Printing in Freefall 12:23 Low Gravity, Regolith, and the “Messy Middle” 17:01 CT Scan 17:59 Printing at Scales Rockets Can’t Touch. Check out The Anatomy of the Nokia 3310: https://nebula.tv/videos/realengineer…
🛒 SFIA Merchandise: https://isaac-arthur-shop.fourthwall… 🌐 Visit our Website: http://www.isaacarthur.net. ❤️ Support us on Patreon: / isaacarthur. ⭐ Support us on Subscribestar: https://www.subscribestar.com/isaac-a… 👥 Facebook Group: / 1583992725237264 📣 Reddit Community: / isaacarthur. 🐦 Follow on Twitter / X: / isaac_a_arthur. 💬 SFIA Discord Server: / discord. Credits: Additive Manufacturing in Microgravity. Written, Produced & Narrated by: Isaac Arthur. Select imagery/video supplied by Getty Images.
Chapters. 0:00 Intro. 2:10 Additive Manufacturing Is Not a Printer. 8:04 The Physics of Printing in Freefall. 12:23 Low Gravity, Regolith, and the “Messy Middle” 17:01 CT Scan. 17:59 Printing at Scales Rockets Can’t Touch.
NASA’s Artemis 2 astronauts have witnessed one of the rarest sights in spaceflight history — a total solar eclipse from beyond the moon.
The event unfolded yesterday (April 6) as the Orion spacecraft looped around the far side of the moon. This trajectory placed the crew in the right place at the right time to see the moon completely block the sun for about 53 minutes, which is far longer than the maximum period of totality for eclipses seen from Earth.
This is the preliminary webinar #16 of the IV SRI World Congress (SRIC4) Abstract: The expansion of the commercial spaceflight sector and democratization of space is creating new opportunities for artists to engage directly with the environment of space. For a new generation of space artists, space presents new physical and philosophic questions. This webinar explores how space artists are redefining their practice through direct engagement with space, using case-studies of work that has been deployed on board the ISS, sub-orbital flights, and zeroG flights. Through these, the webinar will explore how artists are revising traditional art methods and materials through interactions with microgravity; the relationships between artists, astronauts and audiences; and the disciplinary and hierarchy challenges faced by artists operating in the space sector.
An essential Bio: Dr Barbara Brownie is an Associate Dean (Education) at the Royal College of Art. Barbara’s research explores space as a site for art and design, with a particular focus on effects of weightlessness. Her book, Spacewear: Weightlessness and the Final Frontier of Fashion (Bloomsbury, 2019), considers the challenges and opportunities that the commercial space age presents to fashion designers, and how weightlessness necessitates new approaches to clothing and the dressed body. Her most recent book, Art in Orbit (Bloomsbury 2025), explores the relationship between the arts and space sectors, and the spaceworks that demonstrate art’s value in space exploration. In 2026 and 2027 she will be sending writing and artworks to space on three separate flights: one sub-orbital, one orbital, and one lunar. She co-leads the _Space research group at the RCA, a group of artists and researchers operating at the intersection of art and aerospace.
