Playlist

Earth’s Rotation Slowing Down: Days Are Getting Longer

16 Mar. 14:48

Source

Researchers from the University of Vienna and ETH Zurich have confirmed a measurable change in Earth's rotation speed. Their findings indicate that the planet is spinning slower on its axis, leading to a consistent increase in the length of a day. This development is becoming a significant focal point for modern geophysical studies.

Currently, the length of a day is increasing by approximately 1.33 milliseconds per century. Scientists emphasize that such an acceleration in the rate of change has not been documented for the past 3.6 million years. This suggests that the processes influencing Earth's rotational dynamics are currently intensifying.

The primary driver of this shift is identified as the redistribution of mass across the Earth’s surface. As polar ice caps and mountain glaciers melt, the resulting sea-level rise shifts weight between land and oceanic basins. This physical redistribution of mass directly impacts the planet’s angular momentum and rotation.

To verify these trends, researchers studied the chemical composition of benthic foraminifera, which are microscopic marine organisms that archive historical sea-level data in their shells. Through mathematical modeling, the team reconstructed changes in sea levels and rotation speeds dating back 2.6 million years. While these minute adjustments are imperceptible to daily life, they pose critical challenges for high-precision systems, such as satellite navigation and astronomical observation, where sub-millisecond accuracy is essential.

‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌

Ecological Shift: Golden Jackals Pro Projected to Inhabit 75% of the European Continent

Today in 06:53

Source

Once restricted mainly to the Balkans and the Black Sea coastal regions, golden jackals are rapidly expanding their footprint across Europe. According to a landmark study by an international research team published in Nature Ecology & Evolution, these adaptable predators could eventually inhabit up to 75% of the European continent—nearly a sixfold expansion from their historical range. Scientists arrived at these conclusions after monitoring nearly 9,000 sampling sites across multiple European nations.

Recent sightings and acoustic tracking confirm that jackals have established populations in the Czech Republic, the Baltic region, and even Scandinavia. The species thrives in areas with mild winters, mixed agricultural landscapes, and proximity to water sources. Regional climate warming has transformed previously uninhabitable northern areas into suitable habitats, while farming landscapes offer abundant food sources and coverage.

Biologists attribute this unprecedented expansion primarily to the historical decline of wolf populations, which naturally suppress jackal numbers and limit their movement. Smaller than wolves but slightly larger than foxes, jackals feed on small rodents, carrion, plants, and fruits. Their high ecological adaptability allows them to settle efficiently into newly colonized territories without human interference.

However, their entry into Western and Southern Europe, including countries like France and Spain, poses potential ecological consequences. Environmentalists warn that the arrival of jackals could disrupt local ecosystems and threaten endangered ground-nesting steppe birds and smaller wildlife across the Iberian Peninsula.

‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌
‌