Two of the currently identified interstellar meteorites appear to be significantly stronger than local meteorites, which could mean they formed in a supernova
January 2, 2023
Interstellar meteorites may be even stranger than we thought. They appear to be stronger than meteorites produced in our solar system, suggesting they may have formed during a supernova or other extreme cosmic event.
These interspersed rocks are moving fast — any meteorite traveling at a speed higher than the Sun’s is likely to have come from outside our solar system, and its origin can be confirmed by calculating the direction it came from.