What is this object, travelling at 210 000 km/h? ☄️
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YouTubeEuropean Space Agency, ESA
What is this object, travelling at 210 000 km/h? ☄️
Astronomers have taken the sharpest-ever picture of the interstellar comet 3I/ATLAS, using the Hubble Space Telescope. Hubble’s observations are allowing astronomers to more accurately estimate the size of the comet’s solid icy nucleus. The upper limit on the diameter of the nucleus is 5.6 kilometers, though it could be as small as 320 ...
14.5K views1 week ago
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ESA - European Space Agency on Instagram: "A comet from another star system is flying through our Solar System ☄️ Meet 3I/ATLAS – only the third interstellar object ever seen! Discovered on 1 July 2025, it’s now being tracked by our astronomers using telescopes in Hawaii, Chile and Australia. What secrets might this cosmic traveller be carrying? 📹 @europeanspaceagency 🖥️ ESA/@hubbleesa, @NASA, @esoastronomy, M. Kornmesser"
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