Lifeboat Foundation

Try Opera browser FOR FREE here https://opr.as/eiiu-sabine-hossenfelder Last week I saw a lot of headlines about a space propulsion system that uses nuclear fusion. The news comes from a company by name RocketStar Inc. which announced in a press release that they have “reinvented” spacecraft by releasing the “world’s first fusion-enhanced space thruster, the FireStar™ Fusion Drive. They claim that the FireStar TM Fusion Drive improves their water powered pulsed plasma thruster by harnessing aneutronic nuclear fusion by 50%. In this video I explain what this all means. 🤓 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 #technews #technews #space #nuclear

This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

Over the course of nearly two decades, its powerful radar provided never-before-seen details of clouds and helped advance global weather and climate predictions.

CloudSat, a NASA mission that peered into hurricanes, tallied global snowfall rates, and achieved other weather and climate firsts, has ended its operations. Originally proposed as a 22-month mission, the spacecraft was recently decommissioned after almost 18 years observing the vertical structure and ice/water content of clouds.

Continue reading “Peering Into the Heart of Clouds: NASA’s CloudSat Wraps a Revolutionary Journey” »

Peptides can form on cosmic dust despite water presence, challenging previous beliefs and suggesting a possible extraterrestrial origin for life’s building blocks.

Peptides are organic compounds that play a crucial role in many biological processes, for example, as enzymes. A research team led by Dr. Serge Krasnokutski from the Astrophysics Laboratory at the Max Planck Institute for Astronomy at the University of Jena had already demonstrated that simple peptides can form on cosmic dust particles. However, it was previously assumed that this would not be possible if molecular ice, which covers the dust particle, contains water – which is usually the case.

Now, the team, in collaboration with the University of Poitiers, France, has discovered that the presence of water molecules is not a major obstacle for the formation of peptides on such dust particles. The researchers report on their findings in the journal Science Advances.

An exploration of a potential solution to the Fermi Paradox within the Cambrian explosion period of geologic history, with an aside about fossil preservation in space.

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Continue reading “Fermi Paradox: The Cambrian Explosion Solution and Fossil Arks” »

The US space agency’s new sub-kilowatt Hall-effect thruster could allow small spacecraft to explore the solar system like never before.

Traditional AUVs rely on thrusters or pumps to adjust depth, which consumes considerable energy and generates noise. Team BayMax’s design replaces this system with a BCD that employs reversible hydrogen fuel cells. By splitting water into hydrogen and oxygen gases, the BCD can precisely control the ROV’s buoyancy, mimicking the swim bladders found in fish.

This approach offers many advantages. “The cool thing about this for us is that it’s cutting-edge technology,” remarked Bare. We’re the first to implement it in a device with such comprehensive controls, making it truly groundbreaking.”

Continue reading “RICE made underwater robot swim with water-splitting fuel cells” »

In order to terraform new planets, we will need to be able transport entire ecologies & ecosystems through interstellar space in the future. Today we will examine how we could build and maintain such environments inside vast arks, generations ships able to colonize our galaxy, and the challenges these starships will face maintaining not just stores of DNA and genetic material but living organisms which depend heavily on other members of their species and other species to survive and thrive, not least of which is human ourselves. Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Join this channel to get access to perks: / @isaacarthursfia Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: / isaacarthur Support us on Subscribestar: https://www.subscribestar.com/isaac-a… Group: / 1,583,992,725,237,264 Reddit: / isaacarthur Twitter: / isaac_a_arthur on Twitter and RT our future content. SFIA Discord Server: / discord Listen or Download the audio of this episode from Soundcloud: Episode’s Audio-only version: / exporting-earth Episode’s Narration-only version: / exporting-earth-ships-narration-only Credits: Exporting Earth Episode 150, Season 4 E36 Writers: Isaac Arthur Editors: Darius Said Gregory Leal https://www.gregschool.org/ Jerry Guern Konstantin Sokerin Laura Graham Mark Warburton Matthew Acker Sigmund Kopperud Stuart Graham https://beyondnerva.wordpress.com Producer: Isaac Arthur Cover Artist: Jakub Grygier https://www.artstation.com/jakub_grygier Graphics Team: Darth Biomech https://www.artstation.com/darth_biomech Fishy Tree https://www.deviantart.com/fishytree/ Jarred Eagley Jeremy Jozwik https://www.artstation.com/zeuxis_of_… Katie Byrne Ken York / ydvisual Krisitijan Tavcar https://www.miragedereve.com LegionTech Studios Sam McNamara Sergio Boterio https://www.artstation.com/sboterod?f… Narrator: Isaac Arthur Music Manager: Luca DeRosa — [email protected] Music: Dracovallis, “Golden Meadows” https://dracovallis.bandcamp.com/ NJ Mandaville, “Intrumental Background 1” / nj-mandaville Kevin Macleod, “Infinite Wonder” / @incompetech_kmac Chris Zabriskie, “Candlepower” http://chriszabriskie.com Kai Engel, “Endless Story About Sun and Moon” https://www.kai-engel.com/ Lombus, “Amino” https://lombus.bandcamp.com Aerium, “Windmill Forests” / @officialaerium Epic Mountain, “Rising Sky” / epicmountain.

As the driest nonpolar desert in the world, the Atacama Desert in northern Chile is home to very few species of plants and animals. With rainfall often occurring only once a decade, the desert is so dry that NASA uses it as a stand-in for the Martian landscape. But what’s living beneath the parched surface? New research suggests it’s very small, abundant, and old, very old.

While the Atacama Desert’s aridity means that higher forms of life are scarce, it’s well-known that diverse bacteria dominate its soils. However, the researchers aimed to go deeper to see what species of microbes lived more than a meter (3.3 ft) beneath the surface.