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Quantum physicists at ANU have observed atoms entangled in motion. “It’s really weird for us to think that this is how the universe works,” says Dr. Sean Hodgman from the ANU Research School of Physics. “You can read about it in a textbook, but it’s really weird to think that a particle can be in two places at once.”
How does a star affect the makeup of its planets? And what does this mean for the habitability of distant worlds? Carnegie’s Luke Bouma is exploring a new way to probe this critical question—using naturally occurring space weather stations that orbit at least 10% of M dwarf stars during their early lives. He presented his work at the American Astronomical Society meeting (AAS 247) held in Phoenix in January.
Earth and the moon may look very different today, but they formed under similar conditions in space. In fact, a dominant hypothesis says that the early Earth was hit by a Mars-sized object, and it was this giant impact that spun off material to form the moon. But unlike Earth, the moon lacks plate tectonics and an atmosphere capable of reshaping its surface and recycling elements such as oxygen over billions of years.
When lasers were invented in the 1960s, they opened new avenues for scientific discovery and everyday applications, from scanners at the grocery store to corrective eye surgery. Conventional lasers control photons—individual particles of light—but over the past 20 years, scientists have invented lasers that control other fundamental particles, including phonons—individual particles of vibration or sound. Controlling phonons could open even more possibilities with lasers, such as taking advantage of unique quantum properties like entanglement.
In quantum technologies, everything depends on the ability to detect the properties carried by a single photon. But in the real world, that photon of interest is often buried in a sea of unwanted light—a true “needle in a haystack” challenge that currently limits the deployment of many applications, including secure quantum communication, quantum sensors used in telescope networks, as well as the interconnection of quantum computers to accelerate the development of new drugs and materials.
Video shows the Milwaukee officer ordering the man to exit the truck; he refused and drove away at a high rate of speed as the officer attempted to remove him
Planetary scientists have long debated where the material that formed Earth comes from. Despite its location in the inner solar system, they consider it likely that 6–40% of this material must have come from the outer solar system, i.e., beyond Jupiter. For a long time, material from the outer solar system was considered necessary to bring volatile components such as water to Earth. Accordingly, there must also have been an exchange of material between the outer and inner solar systems during the formation of Earth. But is that really true?
Silicon is ubiquitous in modern electronics, and now it is becoming increasingly useful in quantum computing. In particular, silicon’s compatibility with existing chip technology and its long coherence times in silicon-based spin qubits make it a promising material for scalable quantum computing. A new study, published in Nature Nanotechnology, has demonstrated silicon’s use in a logical quantum processor, representing the first of its kind.
Video from Hartford PD shows Steven Jones advancing toward several officers with a knife; now-former officer Joseph Mangano fired multiple shots, fatally wounding Jones
Finding life beyond our solar system goes beyond measuring an exoplanet’s size, as rocky, Earth-sized worlds might not have the conditions for life as we know it. While exoplanets can be directly imaged by blocking their star’s glare, these images are fuzzy and lack resolution to provide enough details about the habitability. Therefore, astronomers are limited to studying an exoplanet’s atmosphere, and this has proven to be quite beneficial in teaching scientists about an exoplanet’s formation and evolution, and whether it contains the necessary ingredients for life as we know it.
Physicists have developed a new theoretical framework which unifies a wide array of seemingly unrelated “Mpemba effects”: counterintuitive cases where systems driven further from equilibrium relax faster than those closer to it. Reporting their results in Physical Review X, researchers led by John Goold at Trinity College Dublin show that both classical and quantum versions of the effect can be understood using the same underlying logic—resolving a long-standing conceptual puzzle.
Deputy Levi Vargas died after suffering a medical emergency during the Baker to Vegas Challenge Cup, a 120-mile law enforcement relay race
Astronomers have discovered an exceptionally rare radio galaxy that has three distinct pairs of radio lobes. This system falls into a subpopulation of radio galaxies known as “triple-double” radio galaxies (TDRGs). Located nearly 7.5 billion light-years away, this unique system, cataloged as J022248−060934, is only the seventh known example of its kind. A paper outlining this discovery was published in the Monthly Notices of the Royal Astronomical Society on February 25.
The people who toiled night and day to put astronauts on the moon during Apollo are thrilled that NASA is finally going back. They just wish these Artemis moonshots had happened sooner while more of Apollo’s workforce was still alive.
Douglas Adams told us the answer to life, the universe and everything is 42. If only cosmology were so straightforward. Astronomers have been arguing for years about a number every bit as fundamental, and they still can’t agree on it.
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