#interstellar-objects

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english.elpais.com
1 month ago
Science

Interstellar interlopers like Oumuamua and Borisov are much more common than previously thought

The first interstellar interloper detected in the solar system, 1I/'Oumuamua, was not gravitationally bound to the Sun, setting it apart from typical celestial bodies.
Discovery of 2I/Borisov, following 1I/'Oumuamua, implies interstellar objects may be more common than previously thought, with estimates suggesting thousands within Neptune's orbit. [ more ]
Ars Technica
3 months ago
OMG science

Why interstellar objects like 'Oumuamua and Borisov may hold clues to exoplanets

Interstellar interlopers are objects that are not gravitationally bound to the Sun or any other celestial body and travel through interstellar space.
There could be around 10,000 'Oumuamua-size interstellar objects within the orbit of Neptune alone, suggesting that interstellar interlopers are more common than previously thought. [ more ]
moreastronomy
Mail Online
6 months ago
Science

First 'alien' objects on Earth? Experts reveal what metal spheres are

A Harvard physicist claimed to find interstellar objects on Earth, but a new study casts doubt on his claims.
The study suggests that the fragments found in the Pacific Ocean are actually coal ash resulting from industrial activity.
The elements found in the fragments are consistent with those found in burning coal, not interstellar material. [ more ]
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