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The sun, our nearest star, never stops breathing. Every second of every day, it exhales a vast stream of charged particles that sweeps outward through the solar system at hundreds of kilometers per second. We call it the solar wind, and while that name conjures something gentle and constant, the reality is considerably more turbulent.
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The criteria for finding an Earth-like planet unofficially comes down to two things: water and the habitable zone. But a phenomenon known as atmospheric escape often “escapes” the minds of many astronomy fans, and it turns out that atmospheric escape is one of the key characteristics for finding an Earth-like world. Although extensive research has been conducted on how the planet Mars might have lost its atmosphere, and potentially the ability to sustain life, how would the atmosphere enveloping a Mars-like exoplanet respond to stars different from our own?
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The central premise of the blockbuster film “Project Hail Mary” is a long-shot mission with a familiar goal: Save humanity from extinction. While the details of the threat facing humanity are new to this story, moviegoers are used to binging on popcorn while watching a heroic quest to save Earth from certain doom. And like so many popular movies of this genre, from “Armageddon” to “Interstellar,” the hero’s journey involves a seemingly impossible mission into space.
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The astronauts Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen are preparing to launch into space on a trajectory that will make them the first humans to travel to the moon in over half a century.
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This image captured by U.S.-Indian Earth satellite NISAR on Nov. 10, 2025, shows Washington’s Mount Rainier. The image is cropped from a much larger swath spanning the Pacific Northwest on a cloudy day; NISAR’s L-band SAR instrument is able to peer through the clouds at the surface below.
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The next U.S. trip to the moon isn’t about planting a flag. It’s about learning how to live and work there. NASA has just reset its Artemis program, marking a clear strategic shift: Space exploration is moving away from a race to achieve milestones and toward a system built on repeated operations, a sustained presence and lunar infrastructure that could become part of the technology networks we rely on here on Earth.
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In physics, some waves behave in a surprising way: instead of spreading out and fading, they hold their shape as they travel at constant speeds. These unusual waves, called solitons, have interested scientists since they were first observed in canals in the 19th century. Today, researchers study solitons in everything from optical fibers to biological systems.
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More than 40 police chiefs and mayors wrote to protest the Hennepin County commissioner’s statement that she was “not willing to fund the sheriff’s office for public safety”
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Here’s a thought experiment. Imagine looking at Earth from a distant star system, armed with a powerful telescope capable of capturing its reflected light. Could you tell the planet was alive? The answer, remarkably, might be yes and the clue would come from the color of the plants.
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A research team led by Professor Jiwoong Yang of the Department of Energy Science and Engineering at DGIST has developed next-generation optical sensor technology capable of precisely detecting not only the intensity and wavelength of light but also its rotational direction—the spin information of photons. The team successfully implemented a quantum-dot-based optical sensor that can detect circularly polarized light (CPL) across an ultra-wide spectral range—from ultraviolet to short-wave infrared—demonstrating photodetection performance comparable to that of commercial silicon optical sensors. The paper is published in Advanced Materials.
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Ayman Ghazali made a video before the attack at Temple Israel in West Bloomfield Township, saying he wanted to “kill as many of them as I possibly can”
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In September 2022, humanity crashed a spacecraft into an asteroid—on purpose. The objective of NASA’s Double Asteroid Redirection Test (DART) was to see if we could intentionally modify the orbit of Dimorphos, the small moonlet orbiting the larger asteroid Didymos. According to all accounts, the mission worked spectacularly, but it was a one-way trip, so our ability to see what happened to the binary asteroid system has so far been limited to ground-based telescopes. That wasn’t good enough for the planetary defense community, so they planned a follow-up mission called Hera, which, according to a recent press release from its operator, the European Space Agency (ESA), just successfully completed its most dramatic deep-space orbital maneuver.
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Scientists in the Riccio College of Engineering at the University of Massachusetts Amherst and the University of California Santa Barbara have demonstrated key laser and ion trap components necessary to help drastically shrink the size of quantum computers, an achievement aligned with the shrinking of integrated microprocessors in the 1970s, 80s and 90s that allowed computers to move from room-sized behemoths to today’s ultrathin smartphones.
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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.”
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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.
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