Open Access – Lifeboat News: The Blog

Jun 29
2026

Space-Filling Aether Theory Makes Comeback

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In the 19th century, scientists came up with the idea of the “aether,” a medium that filled all of space and allowed forces to travel from one place to another. While this was famously proved wrong by the Michelson-Morley experiment, the idea of the aether made a comeback. The new aether is compatible with Einstein’s theories and could explain dark energy and maybe even dark matter. Let’s take a look.

Paper: https://journals.aps.org/prd/abstract… video comes with a quiz which you can take here: https://quizwithit.com/start_thequiz/.… 🤓 Check out my new quiz app ➜ http://quizwithit.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 👉 Transcript with links to references on Patreon ➜ / sabine 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle… 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl… 🔗 Join this channel to get access to perks ➜ / @sabinehossenfelder 🖼️ On instagram ➜ / sciencewtg #science #sciencenews #physics.

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Jun 29
2026

New Theory Explains How Time Began

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The biggest open problem in the foundations of physics is that Einstein’s theory of gravity, General Relativity, does not cooperate with quantum mechanics. Physicists have tried to solve this issue by coming up with a theory of quantum gravity, but those theories fall apart when you need them most – inside of black holes and at the Big Bang. Recently, though, physicists published a new calculation for the Big Bang, with a theory called quadratic gravity, which lets us skip over quantum gravity entirely, and that could explain the origin of time. Let’s take a look.

Paper: https://journals.aps.org/prl/abstract… mugs, posters and more: ➜ https://sabines-store.dashery.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 👉 Transcript with links to references on Patreon ➜ / sabine 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle… 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl… 🔗 Join this channel to get access to perks ➜ / @sabinehossenfelder 📚 Buy my book ➜ https://amzn.to/3HSAWJW #science #sciencenews #physics #gravity This video discusses a new explanation for the beginning of the universe, published in PRL, which addresses quantum gravity and the period before time began. It features a presenter discussing “Asymptotically Safe Gravity” and includes scientific graphics and charts related to cosmological research. This new idea elegantly addresses the origin of the universe and offers a fresh perspective on space time, making it a significant contribution to science news.

#science #sciencenews #physics #gravity.

This video discusses a new explanation for the beginning of the universe, published in PRL, which addresses quantum gravity and the period before time began. It features a presenter discussing \.

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Jun 27
2026

This Experiment Could Change Physics Forever

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The #1 most-wanted particle in physics is the graviton, a quantum of gravity. If physicists were to prove that gravitons exist, they would unambiguously prove that Einstein’s theory is ultimately wrong and must be replaced by a more complete theory that gives quantum properties to space and time. In a recent paper, a physicist came up with an ingenious experiment that could prove that gravitons do exist. Let’s take a look.

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Jun 3
2026

This Giant Ring In Space Poses A Massive Problem For Cosmology

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Scientists say that they’ve just detected a massive cloud of gas some 3 billion lightyears in diameter, floating in space roughly 7 billion light years away from us. This is pretty cool, but the problem is that our current models of the universe say that it (and other massive structures like it) just shouldn’t exist. Let’s take a look.

Paper: https://arxiv.org/abs/2604.

#science #sciencenews #space #physics

Jun 1
2026

New experiment will try to coax virtual particles out of the vacuum

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My favourite physics paper of the week is a new idea for how to coax virtual particles out of the quantum vacuum and into revealing themselves.

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Jun 1
2026

Negative Time is Real, Physicists Confirm. Kind Of

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In a new paper, a group of physicists claims to have confirmed the existence of “negative time.” I had never heard of this, but I had a look at the paper. And I think I have figured it out.

Paper: https://arxiv.org/abs/2409.

#science #sciencenews #physics

May 31
2026

Is the Cosmic Microwave Background a Huge Mistake?

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In the Big Bang Theory, the cosmic microwave background — microwave-range radiation that floats through the entire universe at a steady 2.7 Kelvin — is evidence that a hot explosion of plasma kicked off the creation of the universe. But according to a new paper, the microwave radiation came from early galaxies instead. Does this mean that the big bang theory is wrong? Let’s take a look.

Paper: https://www.sciencedirect.com/science… video comes with a quiz which you can take here: https://quizwithit.com/start_thequiz/.… 🤓 Check out my new quiz app ➜ http://quizwithit.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 👉 Transcript with links to references on Patreon ➜ / sabine 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle… 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl… 🔗 Join this channel to get access to perks ➜ / @sabinehossenfelder 🖼️ On instagram ➜ / sciencewtg 📚 Buy my book ➜ https://amzn.to/3HSAWJW #science #sciencenews #physics #bigbang.

This video comes with a quiz which you can take here: https://quizwithit.com/start_thequiz/.…

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May 26
2026

These Physicists Claim They Can Send Messages To The Past

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When you try to combine quantum physics with Einstein’s theories, you quickly run into some pretty serious problems. The biggest is that causality – the order in which events occur – becomes uncertain as the rest of quantum physics. A group of physicists have leveraged that uncertainty, and are now claiming that they can send messages to the past using quantum mechanics. It’s not as crazy as it sounds. Let’s take a look.

Paper: https://journals.aps.org/prl/accepted… mugs, posters and more: ➜ https://sabines-store.dashery.com/ 💌 Support me on Donorbox ➜ https://donorbox.org/swtg 👉 Transcript with links to references on Patreon ➜ / sabine 📝 Transcripts and written news on Substack ➜ https://sciencewtg.substack.com/ 📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle… 👂 Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl… 🔗 Join this channel to get access to perks ➜ / @sabinehossenfelder 📚 Buy my book ➜ https://amzn.to/3HSAWJW #science #sciencenews #physics #quantum In this video, we examine recent headlines suggesting that sending messages into the past has become easier or even possible, drawing from a theoretical physics paper published in a top journal. While these claims might sound like a time machine is within reach, I clarify that this is a theoretical study and not an actual method for backward time travel. It’s crucial for science communication to distinguish between theoretical possibilities in quantum physics and practical applications.

#science #sciencenews #physics #quantum.
In this video, we examine recent headlines suggesting that sending messages into the past has become easier or even possible, drawing from a theoretical physics paper published in a top journal. While these claims might sound like a time machine is within reach, I clarify that this is a theoretical study and not an actual method for backward time travel. It’s crucial for science communication to distinguish between theoretical possibilities in quantum physics and practical applications.

Apr 30
2026

The Fermi Paradox Just Got Worse

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The Fermi Paradox is the question of why we haven’t been contacted by any extraterrestrial species. In a recent paper, astrophysicists analyzed the paradox by instead examining how civilizations with the ability to send signals through space might develop. Unfortunately for us, their findings are quite bleak – but let’s take a look anyway.

Paper: https://arxiv.org/abs/2602.

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📩 Free weekly science newsletter ➜ https://sabinehossenfelder.com/newsle… Audio only podcast ➜ https://open.spotify.com/show/0MkNfXl… 🔗 Join this channel to get access to perks ➜ / @sabinehossenfelder 📚 Buy my book ➜ https://amzn.to/3HSAWJW #science #sciencenews #aliens #astrophysics This video discusses the Fermi Paradox, questioning the absence of extraterrestrial life despite the vastness of the cosmos. The Milky Way has had billions of years to produce civilizations, so where is everybody? A new paper’s analysis suggests a concerning conclusion regarding this silence, prompting us to consider what the lack of alien life tells us about our universe. 🔭
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#science #sciencenews #aliens #astrophysics.

This video discusses the Fermi Paradox, questioning the absence of extraterrestrial life despite the vastness of the cosmos. The Milky Way has had billions of years to produce civilizations, so where is everybody? A new paper’s analysis suggests a concerning conclusion regarding this silence, prompting us to consider what the lack of alien life tells us about our universe. 🔭

Continue reading “The Fermi Paradox Just Got Worse” | >

Apr 15
2026

We Can Now Simulate a Human Brain, Scientists Show

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Over the years, computer scientists have used cutting-edge processors to simulate the brains of increasingly more complex animals. They’ve already simulated worm and fruit fly brains, and are now working on mice. But according to a new paper, they’ve made a breakthrough that might allow them to simulate human brains, which contain 80 billion neurons compared to a fruit fly’s 140,000. Let’s take a look.

Paper: https://arxiv.org/abs/2512.

#science #sciencenews #neuroscience #tech