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Bare supercontinent may have tipped ancient Earth into ‘Snowball’ phase

About a billion years ago, Earth started to come into its own. It was past the awkwardness of its younger years full of growing pains and turmoil: comet strikes and slimy water, including the Great Oxidation Event that flipped the world upside down. Roughly a billion years ago, the planet began to advance and mature, with plant life developing about 700 million years ago, but still with the occasional wild climate parties to keep things interesting.

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Cobalt honeycombs open a new path to quantum computing

Honeycombs are famous for their elegant design, but now they may have found a new application: quantum computing. To collect knowledge from subatomic particles, quantum computers require carefully designed materials capable of performing necessary, complex functions. However, the metals used, such as ruthenium and iridium, are often rare and expensive, limiting the potential to build new technology.

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BWC: Man in front seat of cruiser points gun at Calif. officers before fatal OIS

A Mt. Shasta PD officer was assisting a Weed PD officer with a drug search; when they went to confront a traffic stop suspect in the cruiser’s passenger seat, he pointed a gun at them

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Chang’e-5 regolith studies reveal nanoscale space-weathering processes

On the moon, the lack of atmosphere and accompanying features such as biological activity, oxygen-rich air, flowing water and rain, wind, and most erosion allows the lunar regolith to preserve a long-term record of surface processes in the space environment.

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A rare blue micromoon rises this weekend

Get set for a rare blue micromoon this weekend—a blue moon that’s also the most distant and smallest-looking full moon of the year.

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Ripples in fire-ant collectives suggest motions are driven by neighbor alignments

Researchers in Spain have discovered that in collectives of moving fire ants, rippling “waves” of density and activity are likely triggered by local regions where ants collectively travel in the same direction as their neighbors.

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The generation of massive Schrödinger cat states using ultracold atoms

Quantum mechanics is a physics framework that describes how matter and energy behave at an extremely small scale, specifically at the scale of atoms and subatomic particles. An effect predicted by the laws of quantum mechanics is superposition, which entails that particles can exist in multiple states or positions simultaneously, which remain indefinite until they are measured or observed.

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Astronomers discover how to estimate masses of newborn planets using dust rings

A team of astronomers, led by University of Warwick in collaboration with researchers at MIT and McMaster, have developed a novel method to use the properties of dust rings around stars to estimate the masses of newborn planets. Published in The Astrophysical Journal, this research offers astronomers a new way to find and characterize planets that are too deeply embedded in their birth environment to be seen directly.

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SpaceX’s Starship rockets are grounded pending investigation after test flight

SpaceX Starship launches are on hold pending an investigation into last week’s test flight.

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The definitive census of multiple star systems within ten parsecs

Our sun is a loner. It lacks a stellar companion hurtling through interstellar space with it. But we’ve known for a long time that that’s actually relatively rare—most stars have at least one gravitationally bound partner. Understanding how exactly those stars are related to each other is critical for observational campaigns—especially for those of exoplanets. So a new paper posted to the arXiv preprint server from researchers at the University of Madrid that categorizes almost every star within 10 light years into companion categories is a welcome addition to the literature on the subject, and could be used to inform the next round of planet-habitable planet-hunting satellites.

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Listening to the sun reveals previously hidden changes to solar cycle

Internal changes due to the sun’s “active biorhythm” have become increasingly “skin-deep” over the past four solar activity cycles, according to a new study.

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Where are all the intermediate mass black holes? Microlensing fast radio bursts might reveal them

Astrophysicists think that black hole masses are hierarchical. The largest are supermassive black holes (SMBH) like the one at the center of the Milky Way and other galaxies. Stellar mass black holes are born of collapsing stars, and are smaller. The smallest of all are the theoretical primordial black holes, which only formed in the weird physics of the early universe.

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Researchers push back fundamental limit on energy transfer between particles without ‘spilling’ radiation

Researchers at TU/e have demonstrated that energy transfer without loss via light or heat can occur over much greater distances than previously thought possible thanks to vibrations in microscopic gold rods. They succeeded in making energy jump from one particle to another over a distance of several millimeters without “spilling” energy along the way.

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Q&A: How researchers are building next-gen quantum computers

Quantum computers have the potential to transform science, accelerating breakthroughs in drug development, cosmology, materials science, nuclear physics, and more.

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Perfect randomness realized for the first time

Creating perfect randomness is surprisingly difficult. Even modern random number generators never generate completely ideal random numbers: small systematic errors can result in some numbers appearing slightly more frequently than others. For many applications, this does not matter. In cryptography, however, even the tiniest deviations can be problematic.

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