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Category: space – Page 36

Post-Scarcity Civilizations: Infinite Resources & Our Future

In a future of limitless resources, what challenges remain when scarcity fades but human desires endure? Join us as we explore the path to post-scarcity civilizations, where technology solves material needs—but purpose, meaning, and new challenges await.

Watch my exclusive video Post-Consciousness Civilizations: https://nebula.tv/videos/isaacarthur–… Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isa… Use the link gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $30. 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… Facebook Group: / 1,583,992,725,237,264 Reddit: / isaacarthur Twitter: / isaac_a_arthur on Twitter and RT our future content. SFIA Discord Server: / discord Credits: Post-Scarcity Civilizations: Infinite Resources & Our Future Episode 495; April 17, 2025 Written, Produced & Narrated by: Isaac Arthur Edited by: Donagh Broderick Graphics: Jeremy Jozwik, Ken York YD Visual Select imagery/video supplied by Getty Images Music Courtesy of Epidemic Sound http://epidemicsound.com/creator Markus Junnikkala, “A Fleet Behind the Moon” Phase Shift, “Forest Night” Kai Engel, “Endless Story About Sun and Moon” Chris Zabriskie, “Unfoldment, Revealment”, “A New Day in a New Sector” Taras Harkavyi, “Alpha and…” Stellardrone, “Red Giant”, “Billions and Billions“
Get Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur.
Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isa…
Use the link gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $30.

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…
Facebook Group: / 1583992725237264
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Twitter: / isaac_a_arthur on Twitter and RT our future content.
SFIA Discord Server: / discord.
Credits:
Post-Scarcity Civilizations: Infinite Resources & Our Future.
Episode 495; April 17, 2025
Written, Produced & Narrated by: Isaac Arthur.
Edited by: Donagh Broderick.
Graphics: Jeremy Jozwik, Ken York YD Visual.
Select imagery/video supplied by Getty Images.
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator.
Markus Junnikkala, \

Earth has just received a radio signal sent from a galaxy that is 9 billion light years away

This is the first time that scientists have discovered a signal coming from a galaxy 9 billion light years from Earth.

The radio signal was detected by Pune, India’s giant VHF radio telescope.

The huge radio telescope is equipped with thirty parabolic antennas, each pointed skyward and with a diameter of about 45 meters.

Rare exoplanet orbits twin stars in ‘Star Wars’-like twist

Astronomers have discovered a planet that orbits at a 90-degree angle around a rare pair of strange stars—a real-life ‘twist’ on the fictional twin suns of Star Wars hero Luke Skywalker’s home planet of Tatooine.

The exoplanet, named 2M1510 (AB) b, orbits a pair of young —objects bigger than gas-giant planets but too small to be proper stars. Only the second pair of eclipsing brown dwarfs known—this is the first exoplanet found on a right-angled path to the of its two host stars.

An international team of researchers led by the University of Birmingham made the surprise discovery using the European Southern Observatory’s Very Large Telescope (VLT). The brown dwarfs produce eclipses of one another, as seen from Earth, making them part of an “eclipsing binary.”

Antikythera Mechanism’s intricate gears: Simulations of ancient astronomical device reveal potential jamming issues

A pair of physicists at Universidad Nacional de Mar del Plata, in Argentina, have created a computer simulation of the famed Antikythera Mechanism and in so doing have found that manufacturing inaccuracies may have caused the device to jam so often it would have been very nearly unusable—if it was in the condition it is now. Esteban Szigety and Gustavo Arenas have posted a paper on the arXiv preprint server describing the factors that went into their simulation and what it showed.

In 1901, divers looking for sponges off the coast of the Greek island, Antikythera, discovered a among the ruins of a sunken ship. The mysterious device was dated to the late second or early first century BCE, and from that time on there has been much debate in the regarding its purpose.

Some markings on the device suggest it could be used to track time and and even predict some others, such as the arrival of a comet, courtesy of its intricate gears and pointing indicators, by turning its hand crank. Since only one of the devices has ever been found, some have suggested it had an otherworldly origin.

Euclid’s First Images Are Here, and They’re Changing How We See the Universe

Euclid’s first data release offers a breathtaking glimpse into our universe, revealing over 26 million galaxies and showcasing the telescope’s unprecedented precision in the visible and infrared. Powered by advanced optics and massive data processing infrastructure, the mission is already revolut

Crystal clues on Mars point to watery and possibly life-supporting past

A QUT-led study analyzing data from NASA’s Perseverance rover has uncovered compelling evidence of multiple mineral-forming events just beneath the Martian surface—findings that bring scientists one step closer to answering the profound question: did life ever exist on Mars?

The QUT research team led by Dr. Michael Jones, from the Central Analytical Research Facility and the School of Chemistry and Physics, includes Associate Professor David Flannery, Associate Professor Christoph Schrank, Brendan Orenstein and Peter Nemere, together with researchers from North America and Europe.

The paper, “In-situ crystallographic mapping constrains sulfate precipitation and timing in Jezero crater, Mars” is published in Science Advances.