Lifeboat Foundation

It took two years to gather all the data included in this image.

This detailed catalog of the stars in our galaxy was a challenge to produce. The telescope’s near-infrared camera helped astronomers see through the clouds of dust that weave their way between the stars, blocking shorter wavelengths of light like visible and ultraviolet. But sometimes the problem is too much light. Our galaxy’s disk is packed so full of stars that they often overlap when you try to photograph them all, and the diffuse light from nebulae and star clusters makes it even harder to single out individual stars. Saydjari and his colleagues used a data processing program that helped predict the background behind each star, making it easier to separate one star from another.

“One of the main reasons for the success of DECaPS2 (the Dark Energy Camera Plane Survey’s second data release) is that we simply pointed at a region with an extraordinarily high density of stars and were careful about identifying sources that appear nearly on top of each other,” says Saydjari.

Despite its recent blowback, Web 3.0 offers a more interconnected and productive society.

The next significant development for the internet and all it governs is Web 3.0. To improve user experience, it will make use of artificial intelligence. In addition, blockchain technology will enable the service to be backed by decentralized networks since Web 3.0 is the fundamental framework for cryptocurrencies like Bitcoin and Ethereum. This will be a revolutionary move that might significantly influence businesses and how they function, as well as individual users. For instance, site owners won’t have to rely on larger businesses like Amazon (AWS) and Google to buy server space.

Web 2.0 – the current version of the internet – has grown overly centralized, with a small number of large technology businesses and government organizations controlling the industry. Web 3.0, which promises a decentralized online ecosystem built on the still-emerging blockchain, will be the third iteration of the internet. Web 3.0 was first coined in 2014 by a computer scientist named Gavin Wood also helped create Ethereum, the decentralized blockchain system that powers the ether coin.

Continue reading “Explained: Will Web 3.0 live up to its hype?” »

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.