Black Holes

ተከተል

Black holes may explain 60-year cosmic rays mystery

October 07, 2025 በAI የተዘገበ

Scientists at the Norwegian University of Science and Technology propose that winds from supermassive black holes could accelerate ultra-high-energy cosmic rays, solving a puzzle dating back to 1962. These particles, mostly atomic nuclei, reach energies up to 10^20 electron volts. The hypothesis suggests these winds, moving at half the speed of light, fling particles across the cosmos.

Scientists uncover hidden energy mechanism in M87 black hole

Astrophysicists at Goethe University Frankfurt have simulated how the supermassive black hole M87* powers its massive particle jet using a new numerical code. Their findings reveal that magnetic reconnection, alongside the traditional Blandford-Znajek mechanism, extracts rotational energy from the black hole. This discovery explains the immense jets that influence galaxy evolution.

Galaxies eject matter more violently than expected

October 07, 2025 በAI የተዘገበ

A new analysis reveals that supermassive black holes in galaxies fling out baryonic matter far more aggressively than previously thought, explaining the long-missing cosmic gas. Researchers at the University of California, Berkeley combined observations of the cosmic microwave background to map how this ordinary matter diverges from dark matter. The findings highlight the powerful role of black holes in shaping the universe's mass distribution.

Black Hole Merger Supports Hawking's Theorem

Astronomers announced on September 17, 2025, the detection of a black hole merger that provides strong evidence for Stephen Hawking's area theorem. Observed via gravitational waves, the event aligns with predictions that black hole surface areas cannot decrease. This bolsters fundamental physics theories amid ongoing cosmic explorations.