Free Republic

Two enormous cracks in Earth's crust opened near the Turkish-Syrian border after two powerful earthquakes shook the region on Monday (Feb. 6), killing over 20,000 people. Researchers from the U.K. Centre for the Observation & Modelling of Earthquakes, Volcanoes & Tectonics (COMET) found the ruptures by comparing images of the area near the Mediterranean Sea coast taken by the European Earth-observing satellite Sentinel-1 before and after the devastating earthquakes. The longer of the two ruptures stretches 190 miles (300 kilometers) in the northeastern direction from the northeastern tip of the Mediterranean Sea. The crack was created by the first of...

Quaoar is one of the so-called trans-Neptunian objects, small planets orbiting beyond the solar system's outermost planet Neptune. Quaoar is a proud owner of its own moon, the 100-mile-wide Weywot. And a recent observation campaign revealed that it also has a ring of material in its orbit. Quaoar's ring is at a very unusual distance from its parent body. In fact, before astronomers discovered Quaoar's ring in observations from several telescopes conducted between 2018 and 2021, they had thought that it was impossible for a ring to exist at such a distance. With a radius of about 2,420 miles from...

The solar flare, classified as M8 in the second-most energetic category of flares, departed from the sun at 5:49 a.m. EDT (0949 GMT) on Friday, disrupting shortwave radio communications in the sun-facing parts of the world. According to Spaceweather.com(opens in new tab), amateur radio operators in Africa and the Middle East could have experienced signal distortion for up to one hour after the flare. The U.K. space weather forecaster Met Office predicts there is a chance of further flares today before the sunspot AR3098 disappears behind the sun's limb (the edge of the sun's visible disk). Space weather forecasters think...

One of those bursts, called a coronal mass ejection, or CME, is expected to collide and consume another, creating what's called a cannibal CME event. According to The Weather Channel, these events can spark strong geomagnetic storms — and in this case, it's headed in our direction. NOAA expects that the CMEs will hit on Thursday, but before they do, the agency said that Earth will also be blasted on Wednesday with relatively fast solar winds, known as a recurrent coronal hole high speed stream. The solar winds alone could trigger a minor geomagnetic storm on Wednesday, but those conditions...

The sun has spat out two clouds of plasma in the past two days, which might trigger beautiful aurora displays observable much farther south than usual. The two coronal mass ejections (CMEs), eruptions of charged particles from the sun's upper atmosphere known as the corona, burst from the sun on Aug. 14 and 15 respectively, according to the U.K. forecaster Met Office (opens in new tab). As the CMEs cross the 900,000-mile (150 million kilometers) distance between the star and our planet, they might cannibalize each other, according to SpaceWeather.com (opens in new tab), creating a single super powerful CME....

Rather, the comet's behavior is probably typical for comets making their first trip toward the sun — we just haven't been able to observe it before. "What makes this comet special is that it was discovered early," Jewitt said. "We've been able to follow the way the comet changes with distance from the sun over a much larger range than has ever been done before." Comet K2 comes from even farther away than the Kuiper Belt, Jewitt said. The comet's original home was most likely the Oort Cloud, the repository of comets and planetary fragments that extends from 2,000 to...