The first space hurricane ever was spotted in August 2014, consisting of “an eddy of plasma, a type of superhot, charged gas found throughout the solar system,” reports Business Insider. “And instead of rain, this storm brought showers of electrons.” From the report: In August 2014, satellites observed a swirling mass with a quiet center more than 125 miles above the…
Tag: frequency
Hoinga: Debris of stellar explosion found in unexpected location
In the first all-sky survey by the eROSITA X-ray telescope onboard SRG, astronomers at the Max Planck Institute for Extraterrestrial Physics have identified a previously unknown supernova remnant, dubbed “Hoinga.” The finding was confirmed in archival radio data and marks the first discovery of a joint Australian-eROSITA partnership established to explore our Galaxy using multiple wavelengths, from low-frequency radio waves to…
Photon-photon polaritons: the intriguing particles that emerge when two photons couple
Scientists at the University of Bath in the UK have found a way to bind together two photons of different colors, paving the way for important advancements in quantum-electrodynamics—the field of science that describes how light and matter interact. In time, the team’s findings are likely to impact developments in optical and quantum communication, and precision measurements of frequency, time and…
What is a quasar?
A quasar is an extremely bright and distant point-like source visible to radio telescopes. The source is a so-called Active Galactic Nucleus, fueled by a supermassive black hole. Source: https://earthsky.org/astronomy-essentials/definition-what-is-a-quasar…
FBI Confirms Report of ‘Long, Cylindrical’ UFO ‘Moving Really Fast’ Over New Mex
An anonymous reader shares a PopularMechanics report: An American Airlines flight crew encountered an unidentified flying object over New Mexico on February 21. American Airlines has confirmed the strange incident, during which a “long, cylindrical object that almost looked like a cruise missile” zipped over the Airbus A320, according to a pilot’s transmission obtained by The War Zone. American Airlines Flight…
Evidence for white dwarfs consuming Earth-like worlds
For the first time, astronomers have detected the vaporized remains of the crusts of long-dead Earth-like and Mars-like planets in the atmospheres of white dwarf stars. Source: https://earthsky.org/space/vaporized-earth-like-mars-like-crusts-white-dwarf-stars…
How Canadians Derailed a Train in 1998 and Drove It to City Hall for Power After a Brutal Ice Storm
James Gilboy, writing at The Drive: Over the week spanning Jan. 4-10, 1998, a trio of massive ice storms wracked the northeastern United States and parts of Canada. Knocking over transmission towers, the storms deprived up to 1.35 million people of electricity, in some cases for weeks (sound familiar?). Rather than leave town, though, one Canadian mayor stepped up to bring…
Optical frequency combs with a new dimension
Periodic pulses of light forming a comb in the frequency domain are widely used for sensing and ranging. The key to the miniaturization of this technology toward chip-integrated solutions is the generation of dissipative solitons in ring-shaped microresonators. Dissipative solitons are stable pulses circulating around the circumference of a nonlinear resonator. …
Could Earth’s Reversing Magnetic Poles Accelerate Climate Change?
A team of researchers from Sydney’s University of New South Wales and the South Australian Museum have investigated how the reversal of Earth’s magnetic pole about 42,000 years could have changed earth’s atmosphere. CNN reports: “Using the ancient trees we could measure, and date, the spike in atmospheric radiocarbon levels caused by the collapse of Earth’s magnetic field,” Chris Turney, a…
Upheaval and extinctions linked to magnetic reversal 42,000 years ago
42,000 years ago, a breakdown in Earth’s magnetic field led to environmental catastrophes and mass extinctions. Source: https://earthsky.org/earth/magnetic-field-reversal-42000-years-ago-neanderthal-extinction…