Part 6/12:
Size anomaly: Expected interstellar objects are typically much smaller, in the hundreds of meters to a kilometer scale. An object this large suggests either a rare event or an unusual origin. The probability of such a massive object passing through close to the Sun is exceedingly low, approximately once every 10,000 years, raising questions about its origin.
Unusual appearance: Observations with the Hubble Space Telescope revealed a glow pointing toward the Sun, opposite to the typical tail of a comet, which points away due to solar wind pushing dust and gas outward. The glow's direction hints at an unusual composition or structure, potentially indicating an artificial origin.