یک پزشک - اخبار فناوری، پزشکی، سینما و کتاب

Habitability zones, also known as Goldilocks zones, represent a crucial concept in the search for life beyond Earth. These zones delineate the region around a star where conditions may be just right for liquid water to exist on the surface of a planet—a key ingredient for life as we know it. Understanding habitability zones is […]

Tidal heating is a fascinating and dynamic phenomenon that occurs when the gravitational forces between two celestial bodies cause internal heating within one or both objects. This process, driven by the tidal interactions between the bodies as they orbit each other, can lead to a variety of intriguing effects, including geological activity, volcanic eruptions, and […]

Exoplanets, planets that orbit stars beyond our own Sun, have captivated the imagination of scientists and the public alike since their discovery. These distant worlds, ranging from rocky terrestrial planets to gas giants and even exotic worlds with bizarre compositions, offer tantalizing glimpses into the diversity of planetary systems throughout the cosmos. With advances in […]

Quasars, short for “quasi-stellar radio sources,” are enigmatic and incredibly luminous objects that reside at the hearts of distant galaxies. These cosmic powerhouses emit intense radiation across the electromagnetic spectrum, from radio waves to X-rays, making them some of the most luminous and energetic phenomena in the universe. While quasars were first discovered in the […]

Neutrinos, often described as ghostly particles, are among the most fascinating and enigmatic entities in the universe. Despite being among the most abundant particles in existence, neutrinos are notoriously difficult to detect due to their weak interactions with matter. Yet, they play a crucial role in a myriad of astrophysical processes, from nuclear reactions within […]

Gravitational waves represent one of the most intriguing and revolutionary phenomena in modern astrophysics, offering a new window into the dynamic and ever-changing cosmos. These ripples in the fabric of spacetime, predicted by Albert Einstein’s theory of general relativity over a century ago, carry information about some of the most extreme and energetic events in […]

Black dwarfs, the elusive and hypothetical remnants of burned-out stars, inhabit the depths of the cosmos as silent sentinels of stellar extinction. Unlike their luminous predecessors, these celestial remnants dwell in darkness, their embers extinguished, their brilliance faded into obscurity. While black dwarfs have yet to be directly observed due to their faintness and the […]

White dwarfs, the dense remnants of low- to intermediate-mass stars, stand as cosmic relics that offer invaluable insights into the final stages of stellar evolution. Despite their diminutive size compared to their progenitor stars, white dwarfs pack a tremendous amount of mass into a compact sphere, resulting in extreme densities and exotic physical conditions. First […]

Neutron stars, the remnants of massive stars that have undergone supernova explosions, stand as some of the most intriguing and enigmatic objects in the cosmos. These dense stellar remnants pack the mass of the Sun into a sphere no larger than a city, resulting in extreme gravitational fields and exotic physical conditions. First proposed in […]

Supernovae, the spectacular explosions of dying stars, represent some of the most awe-inspiring events in the cosmos. These cataclysmic phenomena release immense amounts of energy, outshining entire galaxies and briefly illuminating the vast darkness of space. Since ancient times, humans have observed the sudden appearance of “new stars” in the night sky, only to watch […]

In the vast expanse of the universe, amidst the myriad of celestial phenomena, Gamma-Ray Bursts (GRBs) stand out as some of the most enigmatic and powerful events known to science. These cosmic explosions unleash incomprehensible amounts of energy in the form of gamma-ray radiation, illuminating the cosmos with fleeting but intense bursts of light. Since […]

In the vast expanse of the cosmos, amidst the twinkling stars and swirling galaxies, lies a cosmic enigma that has puzzled astronomers and scientists alike: Fast Radio Bursts (FRBs). These fleeting bursts of radio waves, lasting only milliseconds, have captivated the scientific community since their discovery in 2007. With their origins shrouded in mystery and […]

In the vast expanse of space, amidst the infinite reaches of the cosmos, a fleeting but profound moment occurred in 1977 that left astronomers and scientists worldwide astounded. The Wow! Signal, a seemingly inexplicable radio transmission detected from deep space, captured the collective imagination and sparked fervent speculation about its origins and significance. Decades later, […]