GoKawiil
Tech News
Researchers analyzing data from NASA's Messenger spacecraft now estimate Mercury has contracted up to 14 miles in diameter as its interior cooled over billions of years, roughly 30% more shrinkage than previously calculated. The findings, published in Geophysical Research Letters, suggest the planet's cratered, debris-strewn surface had obscured the true scale of this shrinkage.
Researchers at the Chinese Academy of Sciences used a machine learning algorithm to sift through seismic data from over two million earthquakes recorded between 1990 and 2024, uncovering nearly 175,000 so-called PKP precursor signals. These faint seismic echoes, arriving before the main earthquake waves, point to small irregular structures located roughly 1,800 miles underground near the boundary between Earth's solid mantle and liquid outer core.
Researchers analyzing last November's severe geomagnetic storm found it caused GPS positioning errors exceeding 33 feet across the continental US. The disturbance pushed the Aurora Oval far south of its usual position, creating dense atmospheric irregularities that disrupted the timing of satellite signals passing through the ionosphere.