- This "little" black blob is 40 billion kilometers across (Earth is 13,000km across for reference) Voyager 1 has been traveling close to 16km/sec for the past 41 years, and has still only traveled half the total diameter of the black hole https://cosmosmagazine.com/space/revealed-a-black-hole-the-size-of-the-solar-system 9 comments science
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