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Scientists Propose Black Holes Don’t Exist, Are Something Much Stranger
404 Media • • world
Key Points:
- A seismic shear wave from the 2011 Tohoku-Oki earthquake traveled to Earth's core and back, triggering a slip event that shifted mainland Japan about six millimeters east, marking the first observation of a core-reflected wave impacting the crust.
- Scientists have proposed a model for "gravastars," hypothetical compact objects formed from collapsing matter that lack singularities and event horizons, potentially mimicking black holes but containing an expanding mini-universe inside.
- Analysis of deep-sea ferromanganese crust revealed radioactive isotopes from an ancient kilonova event over 100 million years ago, indicating Earth is passing through remnants of stellar explosions and neutron star mergers in our galactic neighborhood.
- Researchers studying tropical butterflies found that Heliconius species live nearly a year, vastly longer than their close relatives, with longevity linked to their pollen-based diet, highlighting significant lifespan variation within closely related species.
