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Archive for the ‘space’ category: Page 147

Apr 12, 2023

Observatory discovers radio waves from distant planet in neighboring star system

Posted by in category: space

An astronomical discovery was made in New Mexico after an observatory called the Very Large Array picked up radio waves from a neighboring star system.

Scientists near Magdalena were looking for protective magnetic fields similar to Earth’s. The planet, titled YZ Ceti B, might be the first planet outside the solar system discovered with those properties, located just 12 light years away from Earth.

Apr 12, 2023

A Computational Quantum-Based Perspective on the Molecular Origins of Life’s Building Blocks

Posted by in categories: chemistry, computing, information science, quantum physics, space

Exciting.


The search for the chemical origins of life represents a long-standing and continuously debated enigma. Despite its exceptional complexity, in the last decades the field has experienced a revival, also owing to the exponential growth of the computing power allowing for efficiently simulating the behavior of matter—including its quantum nature—under disparate conditions found, e.g., on the primordial Earth and on Earth-like planetary systems (i.e., exoplanets). In this minireview, we focus on some advanced computational methods capable of efficiently solving the Schrödinger equation at different levels of approximation (i.e., density functional theory)—such as ab initio molecular dynamics—and which are capable to realistically simulate the behavior of matter under the action of energy sources available in prebiotic contexts.

Apr 12, 2023

NASA Confirms That Cosmic Object Is so Bright That It Defies Laws of Physics

Posted by in categories: physics, space

Astronomers have long debated the source of ULXs, chalking their brightness up to optical illusions. A new study confirms that they’re all that they appear.

Apr 12, 2023

Scientists create ‘slits in time’ in mind-bending physics experiment

Posted by in categories: physics, space

Researchers replicated the classic double slit experiment using lasers, but their slits are in time not space.

Apr 12, 2023

Sarah Bakewell on Posthumanism, Transhumanism, and What it Actually Means to Be “Human”

Posted by in categories: computing, education, information science, space, transhumanism

Every time a person dies, writes Russian novelist Vasily Grossman in Life and Fate, the entire world that has been built in that individual’s consciousness dies as well: “The stars have disappeared from the night sky; the Milky Way has vanished; the sun has gone out… flowers have lost their color and fragrance; bread has vanished; water has vanished.” Elsewhere in the book, he writes that one day we may engineer a machine that can have human-like experiences; but if we do, it will have to be enormous—so vast is this space of consciousness, even within the most “average, inconspicuous human being.”

And, he adds, “Fascism annihilated tens of millions of people.” Trying to think those two thoughts together is a near-impossible feat, even for the immense capacities of our consciousness. But will machine minds ever acquire anything like our ability to have such thoughts, in all their seriousness and depth? Or to reflect morally on events, or to equal our artistic and imaginative reach? Some think that this question distracts us from a more urgent one: we should be asking what our close relationship with our machines is doing to us.

Jaron Lanier, himself a pioneer of computer technology, warns in You Are Not a Gadget that we are allowing ourselves to become ever more algorithmic and quantifiable, because this makes us easier for computers to deal with. Education, for example, becomes less about the unfolding of humanity, which cannot be measured in units, and more about tick boxes.

Apr 12, 2023

New ‘AI scientist’ combines theory and data to discover scientific equations

Posted by in categories: information science, robotics/AI, space

In 1918, the American chemist Irving Langmuir published a paper examining the behavior of gas molecules sticking to a solid surface. Guided by the results of careful experiments, as well as his theory that solids offer discrete sites for the gas molecules to fill, he worked out a series of equations that describe how much gas will stick, given the pressure.

Now, about a hundred years later, an “AI scientist” developed by researchers at IBM Research, Samsung AI, and the University of Maryland, Baltimore County (UMBC) has reproduced a key part of Langmuir’s Nobel Prize-winning work. The system— (AI) functioning as a scientist—also rediscovered Kepler’s third law of planetary motion, which can calculate the time it takes one space object to orbit another given the distance separating them, and produced a good approximation of Einstein’s relativistic time-dilation law, which shows that time slows down for fast-moving objects.

A paper describing the results is published in Nature Communications on April 12.

Apr 12, 2023

Auroras Unplugged: NASA’s EZIE To Unveil the Charged Link Between Earth and Space

Posted by in categories: education, space

NASA ’s EZIE mission has passed a critical review and remains on track for a launch next year. The mission aims to study auroral electrojets in Earth’s ionosphere, providing insights into the Sun-Earth connection and space weather impacts on Earth. The project will also distribute educational kits to inspire the next generation of scientists.

With an orbit that will take it from pole to pole, NASA’s Electrojet Zeeman Imaging Explorer (EZIE) mission will provide never-before-seen imaging of the electrical currents that link our planet and the surrounding space. But before it can do that, the EZIE team has to pass a series of reviews to demonstrate the mission is on track.

On March 23, the team successfully cleared one of those critical reviews, marking a major milestone for the project and keeping it on pace for a scheduled launch next year.

Apr 12, 2023

Space Force to propose plan to acquire high-capacity satellite communications

Posted by in categories: military, space

WASHINGTON — In an effort to keep up with the ever-increasing demands of U.S. military services, the Space Force will propose a new plan to acquire high-capacity satellite communications.

Senior members of the Joint Chiefs of Staff are set to be briefed on this plan in the coming weeks, said Lt. Gen. Philip Garrant, deputy chief of space operations for strategy, plans, programs and requirements.

“We are working through the wideband satellite communications force design, and we’re going to brief that to the JROC sometime before early May,” Garrant told SpaceNews.

Apr 11, 2023

Why the Largest-Ever Catalog of Supernovae Could Change How We Study Them

Posted by in categories: evolution, space

A new catalog allows astronomers to trace the evolution of a star’s death.

Apr 11, 2023

Could this folding buggy be destined for China’s future lunar base?

Posted by in categories: futurism, space

The Cubic Emergency Lunar Vehicle of China can be folded and tucked into the back of a regular roving vehicle and when in use can travel up to 10km/h on the moon’s surface, say researchers.