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  A huge earthquake swarm was detected in Antarctica, which researchers say was likely the result of a long-dormant volcano awakening. An earthquake swarm refers to incidents in which many seismic events occur in the same small area over a relatively short period of time without an accompanying main shock. Famous Tech Investor Tells: "Put $25 Here Before Coinbase Makes Their Next Ad Ad The Legacy Report According to a study published in the   Nature   journal   Communications Earth & Environment , the swarm affected the Bransfield Strait—a body of water around 60 miles wide that is located between the northwestern tip of the Antarctic Peninsula and the South Shetland Islands. The swarm began in August 2020, with 128 quakes exceeding 4.0 on the moment magnitude (Mw) scale—a way to measure the power of   earthquakes . Readings are generally similar to those of the Richter scale. During the early phase of the swarm, 3,186 quakes were recorded—and it peaked with...

  S omething deep in the heart of the Milky Way galaxy is glowing with gamma radiation, and nobody can figure out for sure what it might be. ©   NASA/DOE/Fermi LAT Collaboration Fermi Telescope image of Milky Way gamma rays. Colliding dark matter has been proposed,   ruled out , and then tentatively   reconsidered . Dense, rapidly rotating objects called pulsars were also considered as candidate sources of the high-energy rays,   before being dismissed   as too few in number to make the sums work. Join the ASPCA Today. Ad Ad ASPCA A study by researchers from Australia, New Zealand and Japan could breathe new life into the pulsar explanation, revealing how it might be possible to squeeze some serious intense sunshine from a population of spinning stars without breaking any rules. Gamma radiation isn't your typical hue of sunlight. It requires some of the Universe's most energetic processes to produce. We're talking   black holes colliding , matter being...

I n May 1967, a solar storm brought the world to the brink of what could have been a nuclear war. With the sun now entering a period of increased activity as part of its 11-year solar cycle, experts have discussed whether or not we should be wary of a second such incident. The world was in the grips of the Cold War in 1967 when the sun belched out one of the largest solar storms ever observed at the time, releasing a colossal radio burst that interfered with communication services here on Earth. 20 Most Unusual Aircraft in Aviation History Ad Ad The Grizzled The United States military was immediately troubled by this radio interference on its radar system, which it interpreted as a deliberate jamming attempt by a foreign adversary. Such a move could have been considered a potential act of war, with the U.S. operating a radar-based early-warning missile detection system to defend against the Soviet Union. Luckily, a catastrophe never came to pass. The U.S. Air Force had been expanding i...

  Never miss another geomagnetic storm. Sign up for Space Weather Alerts and you'll receive a text message when magnetic storms erupt. Aurora your guides and professional astronomers use this service. You can, too !   CO-ROTATING INTERACTION REGION: Geomagnetic storms (G1-class) are possible on April 29th when a co-rotating interaction region (CIR) is expected ...