Science Archives - Page 100 of 279 - Scitke

Astrophysicists Uncover the Secrets Behind the Formation of Massive Galaxies

It’s both humbling and inspiring to consider how much remains to be discovered about the Universe. My collaborators and I recently addressed one of astrophysics’ longstanding mysteries: how massive elliptical galaxies form. For the first time, we now have strong observational evidence to answer this question, as detailed in our recently published study in Nature. […]

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A Physicist Explains How to Visualize the Universe’s Astonishing Expansion

Physics / Mauro Lucas

When you bake a loaf of bread or a batch of muffins, you place the dough in a pan. As it bakes, the dough expands into the pan, causing any chocolate chips or blueberries to spread farther apart. In some ways, the Universe’s expansion is similar. However, there’s a key difference: while dough expands into

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Holiday Heart Syndrome: A Significant Health Risk Tied to Festive Drinking

Healthcare, Medicine / Mauro Lucas

As the season of workplace Christmas parties and family gatherings kicks off, many people indulge in heavier-than-usual drinking. After such occasions, you might notice your heart racing or beating irregularly, feel a fluttering in your chest or neck, experience dizziness, or struggle to catch your breath. Concerned, you might head to the emergency department, only

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Does Cold Weather Make You Sick? The Real Reasons Behind Winter Illnesses

Healthcare, Medicine / Mauro Lucas

You’ve likely heard the advice: “Don’t go outside with wet hair or without a coat in the winter—you’ll catch a cold.” While this isn’t entirely accurate, there’s some truth behind it. Cold weather itself doesn’t cause colds, but it does create conditions that make it easier for respiratory viruses like the cold, flu, and even

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Crash of Ingenuity Mars Helicopter Offers New Insights Into the Red Planet

Astronomy, Planetary Science / Mauro Lucas

Even in its final moments, NASA’s Ingenuity helicopter continues to contribute to our understanding of Mars. The groundbreaking aircraft, designed for just five flights over 31 days, exceeded expectations by completing an astonishing 72 missions over nearly three years. Ingenuity’s extraordinary journey ended on January 18, 2024, during a routine flight in the thin Martian

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Tiny Micro-Flower Could Revolutionize Drug Delivery Inside the Body

Healthcare, Medicine / Mauro Lucas

Medications, whether taken orally or intravenously, often spread throughout the body instead of targeting the specific area where they are needed. However, this inefficiency may soon be addressed by a new microparticle design resembling a flower. In recent years, researchers have developed various particles for targeted drug delivery. These microscopic particles are typically loaded with

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NASA Observes Black Hole Jet Colliding with Mysterious Object

Astronomy, Planetary Science / Samilton Santos

One of the most peculiar galaxies near the Milky Way has presented astronomers with a new and intriguing mystery Known as Centaurus A, this galaxy hosts a supermassive black hole at its center that emits enormous jets of plasma. These jets, traveling through intergalactic space, have collided with something mysterious. But what is this “something“?

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Unusual Particle Gains or Loses Mass Depending on Its Direction of Movement

Physics / Samilton Santos

Scientists have accidentally discovered a particle that has mass when moving in one direction but lacks mass when traveling in another. Known as semi-Dirac fermions, these particles with peculiar behavior were first theorized 16 years ago. A new phenomenon observed in ZrSiS material Researchers discovered the phenomenon in a semimetal material called ZrSiS, which consists

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Blood-Derived Living Material Offers New Hope for Bone Repair, Study Finds

Healthcare, Medicine / Mauro Lucas

When skin is injured, blood clots naturally initiate the healing process. Building on this mechanism, scientists have created a blood-based implant that accelerates and enhances tissue repair, particularly for broken bones. The research team describes this innovation as a “biocooperative regenerative” material. By incorporating synthetic peptides, the implant strengthens the blood clot’s natural barrier to

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First-Time Cocaine Use in Rats Highlights Individual Susceptibility to Addiction

Basic Research, Uncategorized / Mauro Lucas

Researchers at the University of Texas at El Paso (UTEP) explored how rats react to cocaine paired with an unpleasant stimulus, uncovering new insights into addiction vulnerability. In the experiment, nearly 30 rats self-administered intravenous doses of cocaine hydrochloride combined with quinine—a bitter but safe compound—via a nose-poke mechanism. The quinine hit preceded the cocaine

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