Earth Archives - Disasters News

Sep82024 by Editor DeskNo Comments

Mysterious Formation of Earth’s Inner Core: How Mineral Physics is Unlocking Secrets Beneath Our Feet

Deep below Earth’s surface, at a staggering depth of over 5,100 km, lies the inner core a solid ball of iron and nickel. Despite its size and influence, this mysterious part of Earth still puzzles scientists. While we know it plays a crucial role in shaping the conditions necessary for life on Earth, how and when the inner core formed remains a topic of ongoing debate. The Earth’s inner core is responsible for generating the planet’s magnetic field, which shields us from harmful solar radiation. This magnetic field is likely key to creating the conditions that allowed life to flourish billions of years ago. Without it, our planet may not have been able to sustain life. Interestingly, the inner core wasn’t always solid. As Earth has cooled over time, the once-liquid core has been grad...

Aug82024 by Editor DeskNo Comments

Venus and Earth A Tale of Twin Planets with Divergent Destinies: Study Says

Breaking News, Environment

Venus and Earth often referred to as planetary twins, have evolved into starkly contrasting worlds. While Earth is lush and life-sustaining, Venus is a hostile environment with toxic clouds, acid rain, crushing atmospheric pressure, and searing temperatures. Despite their superficial similarities, these differences run deep. Unlike Earth, Venus lacks tectonic plates the shifting, grinding sections of Earth's crust that play a crucial role in maintaining its climate and fostering the continents. This absence of tectonic activity on Venus has been a significant factor in the divergence between the two planets. However, the geological past of Venus remains a mystery, particularly the formation of its oldest surface regions, known as tesserae. Recent research by scientists, including geo...

Jul162024 by Editor DeskNo Comments

Climate Crisis and the Lengthening of Days: The Impact of Melting Polar Ice Caps

Breaking News, Environment

A recent study highlights a lesser-known consequence of the climate crisis: the melting of polar ice caps is causing Earth to spin more slowly, increasing the length of days at an unprecedented rate. Published in the Proceedings of the National Academy of Sciences, the paper reveals how water flowing from Greenland and Antarctica is resulting in more mass around the equator, a phenomenon co-author Surendra Adhikari of NASA's Jet Propulsion Laboratory likens to a figure skater extending their arms during a spin, slowing down their rotation. While Earth is often thought of as a sphere, it is more accurately described as an "oblate spheroid," bulging around the equator much like a satsuma. This shape is constantly changing due to various factors such as daily tides, tectonic plate movement...

Jul132024 by Editor DeskNo Comments

New Study Reveals Ancient Origins of LUCA Early Life on Earth

Breaking News, Climate Actions, Idea & Innovations

Once upon a time, Earth was a barren planet. That changed dramatically when, out of the chemistry present during its early history, something began to squirm processing matter to survive, reproduce, and thrive. The nature of that something, and when it first appeared, have puzzled humanity for as long as we have been able to ask, "What am I?" Now, a groundbreaking study has provided some answers, revealing that life emerged surprisingly early in Earth's history. By analyzing the genomes of organisms alive today, scientists have determined that the last universal common ancestor (LUCA) the first organism that spawned all current life on Earth emerged as early as 4.2 billion years ago. Given that Earth is around 4.5 billion years old, this suggests that life began when the planet was s...