Discovery
Team confirms earliest evidence of humans in the Americas
Team confirms earliest evidence of humans in the Americas A new study confirms that humans arrived in the Americas between 23,000 and 21,000 years ago, contradicting previous estimates. The evidence comes from ancient footprints found at White Sands National Park in New Mexico, which were previously dated using seeds and pollen but have now been […]
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NASA History News and Notes – Summer 2025
NASA History News and Notes – Summer 2025 NASA’s history is marked by critical decisions that have shaped the agency’s national legacy and promoted confidence in times of crisis. The Shuttle-Centaur program was canceled in 1986 due to increased safety measures following the loss of Challenger, marking a difficult decision for NASA Administrator James Fletcher. […]
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Precise measurement standards have revolutionized museum science, helping nail down where artifacts are from
Precise measurement standards have revolutionized museum science, helping nail down where artifacts are from The Great Baltimore Fire of 1904 led to the development of national standards for fire hose threading, which has since improved emergency responses across the country and paved the way for consistency in scientific research. In science, standardization allows for more […]
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Discovery challenges decades-old ideas about brain flexibility
Discovery challenges decades-old ideas about brain flexibility A new study challenges decades-old assumptions about brain flexibility by revealing that the brain uses distinct transmission sites to achieve different types of plasticity. The research, published in Science Advances, found that spontaneous and evoked transmissions use separate synaptic transmission sites, each with its own developmental timeline and […]
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‘Magic’ lenses make infrared light visible
‘Magic’ lenses make infrared light visible Researchers have developed an ultra-thin lens that can transform infrared light into visible light, using a special metasurface composed of nanostructures. The new process allows for mass production of these metalenses, which are 40 times thinner than human hair and made from lightweight materials like lithium niobate. The metalenses […]
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NASA Sensor on Space Station Eyes Contamination off California Coast
NASA Sensor on Space Station Eyes Contamination off California Coast NASA’s EMIT instrument on the International Space Station has successfully detected signs of sewage in wastewater plumes off the California coast, providing a new tool for monitoring water quality. The instrument uses hyperspectral imaging spectroscopy to analyze sunlight reflecting off the planet below, allowing scientists […]
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Hubble Studies a Spiral’s Supernova Scene
Hubble Studies a Spiral’s Supernova Scene Hubble Space Telescope has captured an image of the spiral galaxy IC 758, which appears peaceful but hides a cataclysmic past. The galaxy was affected by a powerful supernova explosion in 1999, known as SN 1999bg, which marked the end of a massive star far more than the Sun’s […]
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How was the wheel invented? Computer simulations reveal the unlikely birth of a world-changing technology nearly 6,000 years ago
How was the wheel invented? Computer simulations reveal the unlikely birth of a world-changing technology nearly 6,000 years ago The wheel’s invention is still shrouded in mystery, but recent computer simulations suggest that it may have originated from wooden rollers around 6,000 years ago. A team of researchers discovered over 150 miniaturized wagons made from […]
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Team maps Neanderthal travels across Europe and Eurasia
Team maps Neanderthal travels across Europe and Eurasia A team of anthropologists has mapped possible pathways taken by Neanderthals during their migration across Europe and Eurasia, using computer simulations to recreate their routes. The researchers found that Neanderthals likely used river valleys as natural highways and traveled during warmer periods to cover approximately 2,000 miles […]
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NASA’s CODEX Captures Unique Views of Sun’s Outer Atmosphere
NASA’s CODEX Captures Unique Views of Sun’s Outer Atmosphere NASA’s CODEX instrument has captured unique views of the Sun’s outer atmosphere, revealing temperature changes and gusty, uneven flow. The CODEX instrument, located on the International Space Station, uses a coronagraph to measure the speed and temperature of solar wind using special filters. These first-of-their-kind measurements […]
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