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Archive for the ‘space’ category: Page 82

Apr 21, 2024

Exodus Propulsion Technologies Claims Huge Space Propulsion Breakthrough

Posted by in categories: materials, space

Dr. Charles Buhler and Exodus Technologies claims that systems with electrostatic pressure differences or electrostatic divergent fields gives systems with a center of mass with non-zero force component (aka generate movement). Buhler is NASA’s subject matter expert on electrostatics. They want to move to demo the system in orbit. These kinds of claims are controversial but the work seems to be thorough. It will only cost about $500k to $1M to create a rideshare mission into orbit to test the system. The mass of an early orbital system would greatly exceed the active materials of the propulsion, which would reduce performance. High performance space propulsion would need to increase the active materials as a percentage of the mass of the craft.

Dr. Charles Buhler discusses an experimental propulsion results based on asymmetrical electrostatic pressure, in a device described in International Patent# WO2020159603A2. The device is described as a system and method for generating a force from a voltage difference applied across at least one electrically conductive surface. The applied voltage difference creates an electric field resulting in an electrostatic pressure force acting on at least one surface of an object. Asymmetries in the resulting electrostatic pressure force vectors result in a net resulting electrostatic pressure force acting on the object. The magnitude of the net resulting electrostatic pressure force is a function of the geometry of the electrically conductive surfaces, the applied voltage, and the dielectric constant of any material present in the gap between electrodes.

Dr. Buhler has experience working with electrostatic discharge & ESD safety for the Space Shuttle Program, the International Space Station Program and the Hubble Space Telescope Program. He was also a Co-Investigator for three NASA Research Announcements funded by the Mars Exploration Program, and is currently working on NASA’s Dust Project focused on utilizing electrostatic methods to remove dust from personnel and equipment that will be sent to the Moon through NASA’s Constellation Program.

Apr 21, 2024

NOAA warning: Severe geomagnetic storm in progress, aurora alert • Earth

Posted by in category: space

A significant space weather event has prompted the National Oceanic and Atmospheric Administration (NOAA) to issue a Geomagnetic Storm Alert.

The Space Weather Message Code ALTK07, issued at 1952 UTC on April 19, 2024, indicates that the geomagnetic K-index has reached a value of 7, crossing the threshold at 1951 UTC during the synoptic period of 1800–2100 UTC.

Initially, space experts anticipated the storm’s intensity to fluctuate between a G1 and G2 level, potentially escalating to G3 by Sunday.

Apr 21, 2024

$300,000 Robotic Micro-Factories Pump Out Custom-Designed Homes

Posted by in categories: economics, finance, habitats, robotics/AI, space

Construction is the world’s largest industry, employing seven percent of the planet’s working-age adults, contributing 13 percent of the world’s GDP and completing floor space equivalent to the city of Paris every seven days.

The construction industry is also the most inefficient, least digitised and most polluting industry (37% of ALL emissions), so change is imperative from macro economic necessity alone. For the builders of the world faced with a jigsaw puzzle of partial digital solutions and chronic labor and supply chain issues, the margins are growing ever-thinner and the necessity is to change or perish.

British company Automated Architecture (AUAR) has a thoroughly ingenious solution and it has enlisted an all-star cast of financial backers in short order: Morgan Stanley, ABB Robotics, Rival Holdings (USA), Vandenbussche NV (Belgium) with VCs such as Miles Ahead and Bacchus Venture Capital (Jim Horowitz et al) helping to get the initial idea off the ground.

Apr 21, 2024

First Tidally Locked Super-Earth Exoplanet Confirmed

Posted by in categories: physics, space

An international team of astronomers and astrophysicists has confirmed the first known observance of a tidally locked super-Earth exoplanet. In their paper published in The Astrophysical Journal, the group describes the unique approach they took to confirm that the exoplanet LHS3844b is tidally locked and what the finding suggests about other planets in the galaxy.

Prior research has led astronomers to believe that some exoplanets are tidally locked, with one side that always faces the star they revolve around, but they have been unable until now to prove it. In this new effort, the research team picked a likely candidate and used a unique approach to study its attributes to ascertain its motion.

Prior research has shown that several moons in our solar system, including the one circling Earth, are tidally locked, always facing the planet they orbit. In this situation, their rotation period matches their orbital period—the result is a moon that always shows the same side to its planet. For this reason, the Earth’s moon has what has commonly been described as a “dark side”—the side we never see. Tidal locking is due to gravitational forces between a moon and its planet—or a planet and its star.

Apr 21, 2024

Packs of dog-shaped robots could one day if they can find their footing on Earth first

Posted by in categories: robotics/AI, space

A dog-like, bio-inspired robot called Spirit is still learning to walk, but could one day be deployed on the moon to explore steep, potentially hazardous areas with a team of robot companions.

Apr 21, 2024

How Stellar Magnetism Is Reshaping Our View of Distant Worlds

Posted by in category: space

From the brightness variations of its host star, an exoplanet ’s size and other properties can be determined. In order to avoid mistakes, the star’s magnetic field is decisive.

700 light years away from Earth in the constellation Virgo, the planet WASP-39b orbits the star WASP-39. The gas giant, which takes little more than four days to complete one orbit, is one of the best-studied exoplanets.

Shortly after its commissioning in July 2022, NASA’s James Webb Space Telescope turned its high-precision gaze on the distant planet. The data revealed evidence of large quantities of water vapor, of methane and even, for the first time, of carbon dioxide in the atmosphere of WASP-39b. A minor sensation!

Apr 20, 2024

Dragonfly: NASA Just Confirmed The Most Exciting Space Mission Of Your Lifetime

Posted by in category: space

Mission to explore the surface of the only moon in the solar system with an Earth-like atmosphere will launch in 2028 and arrive at Saturn’s giant moon in 2034.

Apr 19, 2024

NASA’s Juno probe captures amazing views of Jupiter’s volcanic moon Io (video)

Posted by in category: space

Io is simply littered with volcanoes, and we caught a few of them in action.

Apr 19, 2024

Study suggests Io’s volcanoes have been active for 4.5 billion years

Posted by in category: space

A team of geologists and planetary scientists from the California Institute of Technology, the University of California Santa Cruz, New York University, and NASA Goddard Space Flight Center reports evidence that Io’s volcanic activity has been ongoing since the beginning of the solar system. In their study, published in the journal Science, the group studied sulfur isotopes in Io’s atmosphere to determine how long the moon has been volcanically active.

Apr 19, 2024

First Fractal Molecule in Nature Assembles Into a Sierpinski Triangle And We Don’t Know Why

Posted by in category: space

From the spiral arms of galaxies to microscopic snow crystals, nature seems to fall into fractal-like patterns that repeat in increasingly smaller increments. No matter how small you go, parts of the pattern still resemble the whole.

One exception appears to be molecules, which have not been known to exhibit self-similarity at changing scales. That is, until now.

Researchers from Germany, Sweden, and the UK have discovered an enzyme produced by a single-celled organism that can arrange itself into a fractal – not just any fractal, but a repeating pattern of triangles known as a Sierpiński triangle.

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