Lifeboat Foundation

Contents:
00:00 — Lunar Glass & Lunar Vehicle (Music: Lunar City)
05:01-HEXATRACK-Space Express Concept (Music: Constellation)
10:30 — Mars Glass, Dome City, and Martian Terra Forming (Music: Martian)
13:54 — Beyond — Proxima Centauri, Tau Cet e, TRAPPIST-I system, and beyond (Music: Neptune) HEXATRACK-Space Express Concept, designed and created by Yosuke A. Yamashiki, Kyoto University.
Lunar Glass & Mars Glass, designed and created by Takuya Ono, Kajima Co. Ltd.
Visual Effect and detailed design are generated by Juniya Okamura.
Concept Advisor Naoko Yamazaki, AstronautSIC Human Spaceology Center, GSAIS, Kyoto UniversityVR of Lunar&Mars Glass — created by Natsumi Iwato and Mamiko Hikita, Kyoto University.
VR contents of Lunar&Mars Glass by Shinji Asano, Natsumi Iwato, Mamiko Hikita and Junya Okamura.
Daidaros concept by Takuya Ono.
Terraformed Mars were designed by Fuka Takagi & Yosuke A. Yamashiki.
Exoplanet image were created by Ryusuke Kuroki, Fuka Takagi, Hiroaki Sato, Ayu Shiragashi and Y. A. Yamashiki.
All Music (” Lunar City” “Constellation”“Martian”“Neptune”) are composed and played by Yosuke Alexandre Yamashiki.

What if 2001 had been made a dozen or so years earlier? I used images from https://www.youtube.com/watch?v=EsVD11FE3oQ&feature=related to recreate the famous shuttle/space station docking scene with Strauss’s “Blue Danube”.

Why doesn’t anything go faster than the speed of light? Want to see the world through the eyes of a scientist? Visit https://brilliant.org/astrum to sample their courses for free, and the first 200 of you will get 20% off Brilliant’s annual premium subscription.

Previous episodes: https://www.youtube.com/watch?v=tv3UrO2gHxQ&list=PL2gLpWRK0Q…uzb-c1vE4g.

Continue reading “The Speed of Light Reveals the Universe Must Be Stranger Than We Ever Imagined” »

Is the universe flat, spherical or hyperbolic? Sponsored by Ridge Wallet. Use the link https://ridge.com/astrum/ to get the best offer of up to 40% off until Dec 22nd.

Series playlist: https://www.youtube.com/watch?v=tv3UrO2gHxQ&list=PL2gLpWRK0Q…uzb-c1vE4g.

Continue reading “This Model Reveals the Universe Is More than Infinite” »

NASA scientists report the discovery of LHS 475 b, an exoplanet almost identical in size and mass to Earth, and the first to be confirmed by the James Webb Space Telescope.

LHS 475 is a red dwarf star with about a quarter of our Sun’s mass and radius, located relatively close in our stellar neighbourhood at 41 light years away. Astronomers have now confirmed that the system contains at least one known exoplanet, designated LHS 475 b.

A recently discovered acoustic effect allows a hot gas to simulate the gravity-induced convection within a star or giant planet.

Sometimes a light bulb goes on—literally—and a scientific advance is made. Researchers studying an acoustic effect in high-powered light bulbs have developed a system that mimics the gravitational field around planets and stars [1]. The team demonstrated that sound waves in the bulb generate a force that pulls gas toward the bulb’s center. This gravity-like force causes the gas to move around in convection cycles that resemble fluid flows in the Sun and in giant planets. With further improvements, the system could be used to investigate convection behavior that is too difficult to simulate with computers.

In 2017, research on high-powered sulfur lamps revealed that sound waves could drive hot gas to ball up in the center of the bulbs [2]. The surprising phenomenon caught the attention of Seth Putterman’s acoustic group at the University of California, Los Angeles. The team studied the clumping and showed that it could be explained by the acoustic radiation force. This force is well known in acoustic levitation experiments, in which sound waves scattering off an object, such as a small bead, can exert a force (see Synopsis: Tossing and Turning). Putterman and his colleagues showed that, in the bulbs, this force acts not at the surface of an object where sound scatters, but throughout the gas, where density variations redirect the sound waves. “We knew that the force acts at a sharp interface between something solid and a gas,” says team member John Koulakis. “In the bulb, there’s no sharp interface—just variations—but there still is a force.”

Two astronauts from the International Space Station (ISS) yesterday performed the first spacewalk of the year, working on the exterior of the station as part of a long-term program to upgrade the ISS power system. The spacewalk took place on Friday, January 20, and lasted over seven hours, though one troublesome strut wasn’t bolted into place as planned.

The two astronauts performing the spacewalk were NASA astronaut Nicole Mann and Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata, and this was the first spacewalk for each of them.

The ISS solar arrays which provide power to the station are getting old, so in a long-term project astronauts are installing new arrays called iROSAs at an offset on top of the old arrays — allowing both sets of arrays to provide power. The aim of the spacewalk yesterday was to install two mounting platforms, which would be used to install new solar arrays later this year.

It’s not at every university that laser pulses powerful enough to burn paper and skin are sent blazing down a hallway. But that’s what happened in UMD’s Energy Research Facility, an unremarkable looking building on the northeast corner of campus. If you visit the utilitarian white and gray hall now, it seems like any other university hall—as long as you don’t peak behind a cork board and spot the metal plate covering a hole in the wall.

But for a handful of nights in 2021, UMD Physics Professor Howard Milchberg and his colleagues transformed the hallway into a laboratory: The shiny surfaces of the doors and a water fountain were covered to avoid potentially blinding reflections; connecting hallways were blocked off with signs, caution tape and special laser-absorbing black curtains; and scientific equipment and cables inhabited normally open walking space.

As members of the team went about their work, a snapping sound warned of the dangerously powerful path the laser blazed down the hall. Sometimes the beam’s journey ended at a white ceramic block, filling the air with louder pops and a metallic tang. Each night, a researcher sat alone at a computer in the adjacent lab with a walkie-talkie and performed requested adjustments to the laser.

This “may be the first direct detection of a ‘Gaia exoplanet.’”

The European Space Agency’s (ESA’s) Gaia spacecraft helped capture an exoplanet, paving the way for follow-up observations that revealed the distant planet had a nuclear fusion reaction in its core.

“The discovery of HD 206,893 c is a really important moment for the study of exoplanets, as ours may be the first direct detection of a ‘Gaia exoplanet,’” Professor Sasha Hinkley at the University of Exeter in England explained in a press statement.

Continue reading “ESA’s Gaia finds exoplanet with nuclear fusion reaction at its core” »