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Astronomy

Astronomers Discover Fastest Interstellar Object 3I/ATLAS in Solar System

Third confirmed interstellar object 3I/ATLAS approaches the Sun in October

From Hacker News Original Article Hacker News Discussion

Astronomers have discovered 3I/ATLAS, the third known interstellar object passing through our Solar System, notable for its high speed and comet-like features. It will make its closest approach to the Sun in October, providing months of observation opportunities before it leaves the Solar System next year.

Why it matters: 3I/ATLAS is the fastest interstellar visitor detected, offering a rare chance to study material from beyond our Solar System.

The big picture: With new telescopes like the Vera C. Rubin Observatory, astronomers expect to find several interstellar objects annually, expanding our knowledge of the cosmos.

Stunning stat: 3I/ATLAS is traveling at about 60 km/s, significantly faster than previous interstellar objects 'Oumuamua and 2I/Borisov.

Commenters say: Many highlight the improved detection capabilities enabling these discoveries and discuss the object's unusual speed, size estimates, and the potential for more interstellar visitors soon.