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Archive for the ‘space’ category: Page 75

Apr 26, 2024

Orbiter Spots “Spiders” on Surface of Mars

Posted by in categories: materials, space

Imagine a real spider 3,300 feet across.


The European Space Agency’s Mars Express orbiter has spotted “spiders” on the Red Planet’s southern polar region.

But they’re not the arachnids we fear or adore back on Earth — they’re the result of a complex geological process that causes carbon dioxide to sublimate, digging up darker material from below the surface during the planet’s spring.

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Apr 25, 2024

The Big Quantum Chill: NIST Scientists Modify Common Lab Refrigerator to Cool Faster With Less Energy

Posted by in categories: computing, quantum physics, space

From stabilizing qubits (the basic unit of information in a quantum computer) to maintaining the superconducting properties of materials and keeping NASA’s James Webb Space Telescope cool enough to observe the heavens, ultracold refrigeration is essential to the operation of many devices and sensors. For decades, the pulse tube refrigerator (PTR) has been the workhorse device for achieving temperatures as cold as the vacuum of outer space.

These refrigerators cyclically compress (heat) and expand (cool) high pressure helium gas to achieve the “Big Chill,” broadly analogous to the way a household refrigerator uses the transformation of freon from liquid to vapor to remove heat. For more than 40 years, the PTR has proven its reliability, but it is also power-hungry, consuming more electricity than any other component of an ultralow temperature experiment.

Apr 25, 2024

Scientist claims to have ‘evidence’ from ‘Second Law of Infodynamics’ that humanity lives in a simulation

Posted by in categories: energy, physics, space

A scientist at the University of Portsmouth claims to have ‘evidence’ that humanity exists with a simulation. In the 1999 movie The Matrix, the plot centers around the fact that we live in a digital simulation, and scientist Melvin Vopson claims that fact may match the fiction of the popular blockbuster.

Vopson has written extensively on the topic of the possibility that the known universe is a digital facsimile. He has provided articles for The Conversation and authored a book, Reality Reloaded, on the theme.

But while many of the theories posited about the universe being a simulation are in the realm of the abstract, Vopson now claims to have evidence that support his theory. “In physics, there are laws that govern everything that happens in the universe, for example how objects move, how energy flows, and so on. Everything is based on the laws of physics,” the scientist said in 2022, reports Popular Mechanics.

Apr 25, 2024

Buried in the Cat’s Paw Nebula lies one of the largest space molecules ever seen

Posted by in categories: chemistry, space

The molecule 2-methoxyethanol could reveal how the cosmos grew so complex.

Apr 25, 2024

3.7 Billion Years Old: Oldest Undisputed Evidence of Earth’s Magnetic Field Uncovered in Greenland

Posted by in categories: particle physics, space

A collaborative study by the University of Oxford and MIT has uncovered a 3.7-billion-year-old magnetic field record from Greenland, demonstrating that Earth’s ancient magnetic field was as strong as it is today, crucial for protecting life by shielding against cosmic and solar radiation.

A new study has recovered a 3.7-billion-year-old record of Earth’s magnetic field, and found that it appears remarkably similar to the field surrounding Earth today. The findings have been published today (April 24) in the Journal of Geophysical Research.

Without its magnetic field, life on Earth would not be possible since this shields us from harmful cosmic radiation and charged particles emitted by the Sun (the ‘solar wind’). But up to now, there has been no reliable date for when the modern magnetic field was first established.

Apr 25, 2024

ONE REVOLUTION PER MINUTE — a short film by Erik Wernquist

Posted by in categories: entertainment, space

Is a short film I made to explore my fascination with artificial gravity in space.

It takes place aboard the \.

Apr 25, 2024

NASA Ponders Why Gas Produced by Life Is Leaking Out of Mars at Night

Posted by in category: space

NASA’s Mars Curiosity rover has made consistent and puzzling findings while roaming the barren surface of the planet’s Gale Crater: mysterious puffs of methane gas that only appear at night and vanish during the day.

Over the years, the rover’s Sample Analysis at Mars (SAM) instrument has repeatedly detected significant concentrations of the gas, sometimes spiking to 40 times the usual levels — and scientists are still trying to figure out the source, as NASA details in a new blog post.

It’s an especially intriguing finding, given that living creatures produce methane here on Earth, giving the findings special significance as NASA scans the Red Planet for signs of subterranean life.

Apr 24, 2024

Why is There Plutonium in This Star? Przybylski’s Star with David Kipping

Posted by in category: space

Is HD 101,065 or Przybylski’s Star salted with Plutonium? David Kipping of Cool Worlds lab joins John Michael Godier to discuss the search for exomoons and te…

Apr 24, 2024

Seeding the Stars

Posted by in categories: engineering, environmental, media & arts, space

The galaxy is a vast place with billions of potential new worlds for humanity to colonize, but interstellar space is so enormous that reaching even the nearest stars and planets by spaceship would take decades at best, and maybe many centuries. Even on arrival terraforming those barren planets would take just as long.

Two options for overcoming the immensity of space and time are the Seed Ship and the Data Ship, automated vessels able to colonize the worlds for us. We will examine those today, their advantages, limitations, and misconceptions, and variations of them we might use to seed the stars.
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Apr 24, 2024

Inexplicable Flying Fox found in Hydra Galaxy Cluster

Posted by in category: space

High sensitivity radio observations have discovered a cloud of magnetized plasma in the Hydra galaxy cluster. The odd location and shape of this plasma defy all conventional explanations. Dubbed the Flying Fox based on its silhouette, this plasma will remain a mystery until additional observations can provide more insight.

A team led by Kohei Kurahara at the National Astronomical Observatory of Japan analyzed observations from the Giant Metrewave Radio Telescope (GMRT) targeting the Hydra galaxy cluster, located over 100 million light years away in the direction of the constellation Hydra.

By applying recent analysis techniques to the GMRT (Giant Metrewave Radio Telescope) data archive, the team was able to discover a cloud of magnetized plasma shaped like a flying fox which has never been reported before.

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