Astronomers have discovered what they think may be an interstellar object passing through the solar system. At twice as wide as Mount Everest is tall, A11pl3Z would be the third interstellar object — an object that originates from outside the solar system — ever to be found, after ‘Oumuamua in 2017 and a comet called 2I/Borisov in 2019. Telescopes around the world are now scrambling to observe it — including a virtual telescope that plans to share real-time images online.
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