When the interstellar object 3I/ATLAS was first imaged by the Hubble Space Telescope on July 21st, 2025, it became evident that the glowing…
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"Nothing in my professional training as an X-ray astronomer had prepared me for something like this."
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For decades, fossils discovered in Alaska were believed to belong to ancient mammoths, but recent testing has shocked scientists!
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One of the test stands was last used as a drop tower for microgravity testing.
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A newly discovered celestial object may be a starless cloud that could change how astronomers understand dark matter.
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What if we told you that Mount Everest was once underwater? The discovery of marine fossils at its summit has scientists scratching their heads.
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A new video provides a front-row seat to a cosmic drama that has been playing out for centuries.
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Ceratopsians were horned, beaked dinosaurs that once stomped their way all over North America and Asia during the Late Cretaceous period, about 80 million years ago. Their abundance in the fossil records of these continents, which were connected by land bridg…
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The iceberg could completely disintegrate within days or weeks, scientists say.
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JWST peered at the glowing trail of stars left behind by a candidate runaway supermassive black hole deep in space, revealing new insights after other telescopes looked at the event.
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2025 MN45 is 0.4 miles wide and completes one rotation every 1.88 minutes.
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A billionaire-backed philanthropic organization is funding the development of a series of new observatories, including a space telescope larger than Hubble.
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Researchers have proposed a theoretical timepiece, dubbed the "CRASH Clock," which tells us how quickly satellites would start colliding if they lost the ability to avoid each other, such as during a powerful solar storm. And its value is rapidly decreasing.
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Scientists at the University of Colorado Boulder may have solved a pressing mystery about the universe's gravitational wave background.
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“Standing at the edge of the world, in a place I only knew from photos and documentaries, I can’t imagine a greater thrill than this,” she wrote in one account. “The thrill of seeking to know the ocean and joining the ranks of researchers across the globe wor…
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NASA’s IXPE reveals shocking new details about a white dwarf star, giving it a cosmic second chance with stunning X-ray data.
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Solar system comets are often at their brightest as they draw close to the sun
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Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly. Scientists are developing detectors so sensitive they can spot particle interactions that might occur once in years or even decades.…
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Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still daring to test it. Some theories of quantum gravity suggest light might behave slightly differently at extreme energies. By tracking ult…
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Experiments inside a fusion reactor in China have demonstrated a new way to circumvent one of the caps on the density of the superheated plasma swirling inside.
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Fossilized bones and teeth dating to 773,000 years ago are providing a deeper understanding of the emergence of Homo sapiens.
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"This was many times more energetic than any similar event and more than any known explosion powered by the collapse of a star."
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The FAA predicted Elon Musk’s Starship would cause “minor or minimal” disruption. Then the rockets exploded twice in three months over busy airspace. Flight data reveals how many planes scrambled to protect passengers and avoid burning debris.
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: Synthetic cephalopod skin could be used in architecture and computer displays as well as background-matching subterfuge
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