Nature Hub

   From- Sky & Te;escope  By - Aas Nova  Edited by - Amal Udawatta A radio image of the first odd radio circle to be discovered, ORC-1, with a visible-light image of stars and galaxies forming the background. Jayanne English (U. Manitoba), EMU (ASKAP/CSIRO), MeerKAT, DES (CTIO) Discovered in 2019, odd radio circles (ORCs) are among the newest and most mysterious astrophysical phenomena. New research examines how bubbles blown by black hole jets could create these striking features. ============================================== Stumped by Space ORCs ORCs are faint extragalactic circles of radio emission that appear to be invisible at other wavelengths. As the number of known ORCs slowly climbs, researchers have begun to test possible formation mechanisms. Among the many possibilities are the jets of active galactic nuclei: luminous galactic centers powered by accreting supermassive  black holes. In this hypothesis, active galactic nucleus jets filled with fa...

  Cloudyapple/BBC Weather Watchers Glenariff, Causeway Coast And Glens Simon King Lead Weather Presenter Ian Aikman and Hafsa Khalil BBC News Edited by - Amal Udawatta The Northern Lights have splashed vivid colour across UK night skies once again, with stunning images captured all across the country. The lights, also known as aurora borealis, were expected to be seen only as far south as the Midlands, but on Wednesday night, according to BBC Weather was the strongest and most widespread showing of the phenomenon in the UK since May. As solar activity weakens, it might still be possible for those in some Northern areas to see the lights on Friday, but elsewhere, the chances are low. Cat Lloyd Gwynedd Aurora displays occur when charged particles collide with gases in the Earth's atmosphere around the magnetic poles. As they collide, light is emitted at various wavelengths, creating colourful displays in the sky. The auroras are most commonly seen over high polar latitudes, and are c...

 From - Sky & Telescope By- Javer Barbuzano Edited by Amal Udawatta The newly discovered giant volcano on Mars is located just south of the planet’s equator, in eastern Noctis Labyrinthus, west of the Valles Marineris canyone system. The volcano sits on the eastern edge of a broad regional topographic rise called Tharsis, home to three other well-known giant volcanoes: Ascraeus Mons, Pavonis Mons, and Arsia Mons. Although more eroded and lower than these giants, the newly discovered volcano rivals the others in diameter (red dashed circle). Background: NASA / USGS; interpretation and annotations by Pascal Lee and Sourabh Shubham It's not every day that a giant volcano is discovered hiding in plain sight. By reviewing satellite imagery from many missions, scientists have spotted the remains of a colossal volcano on Mars. The volcano, provisionally named “Noctis Mons,” had been imaged repeatedly since the early 1970s, but extensive erosion had concealed it from view. Researchers ...

      From - Knowable Magazine       By -  By    Theo Nicltopoulos       Edited by - Amal Udawatta The first interstellar interloper detected passing through the Solar System, 1l/‘Oumuamua, came within 24 million miles of the Sun in 2017. It’s difficult to know exactly what ‘Oumuamua looked like, but it was probably oddly shaped and elongated, as depicted in this illustration. CREDIT: NASA, ESA, JOSEPH OL MSTED (STSCI), FRANK SUMMERS (STSCI) On October 17 and 18, 2017, an unusual object sped across the field of view of a large telescope perched near the summit of a volcano on the Hawaiian island of Maui. The Pan-STARRS1 telescope was designed to survey the sky for transient events, like asteroid or comet flybys. But this was different: The object was not gravitationally bound to the Sun, or to any other celestial body. It had arrived from somewhere else. The mysterious object was the first visitor from interstellar space observ...