<ul><li>Astronomers have discovered a nearly perfect spherical supernova remnant named Telios on the outskirts of the Milky Way, its exact size and distance remain unknown.</li><li>Named G305.4–2.2, or Telios, the object was spotted using the ASKAP telescope in Western Australia, known for its remarkable circular symmetry and low brightness compared to other remnants.</li><li>The SNR is believed to either be very young or very old due to its low brightness, with estimated distance ranging from 7,170 to 25,100 light-years from Earth and a potential size of 45.6 to 156.5 light-years across.</li><li>Telios is situated below the galactic plane, making its distance and size uncertain, researchers suggest a Type Ia supernova as the likely origin but the exact cause remains undetermined.</li></ul>

Astronomers spy puzzlingly 'perfect' cosmic orb with unknown size and location

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