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.

Trio awarded 2025 Nobel Prize in Physics for quantum tunneling work

The 2025 Nobel Prize in Physics has been awarded to John Clarke, Michel Devoret, and John Martinis for their pioneering research on quantum tunneling in superconducting circuits. Their 1985 experiments demonstrated how quantum effects apply to complex systems, laying the foundation for modern quantum computers. Clarke expressed surprise at the recognition, noting the unexpected impact of their discovery.

Electrons in graphene reach supersonic speeds for first time

October 09, 2025 由 AI 报道

Researchers have achieved a breakthrough by pushing electrons in graphene to supersonic speeds, creating a hydraulic jump similar to a sonic boom. This experiment, conducted using a microscopic nozzle, marks the first observation of such electron behavior. The findings could help resolve debates on electrically charged shockwaves.

Study suggests moon's largest crater formed from northern impact

A new analysis indicates that the moon's South Pole-Aitken basin, its oldest and largest crater, likely formed from an asteroid impact originating from the north rather than the south. This finding challenges previous assumptions about the moon's early history. The discovery could enhance the value of NASA's upcoming Artemis III mission to the basin's rim.

Hubble telescope images spiral galaxy NGC 6000

The NASA/ESA Hubble Space Telescope has captured a stunning image of NGC 6000, a spiral galaxy 102 million light-years away in the constellation Scorpius. The picture highlights stars of varying ages, from blue young clusters to a golden older core, while revealing faint remnants of past supernovae. An asteroid photobombed the shot, adding streaks to the cosmic scene.

Gaia mission reveals causes of tumbling asteroids

Scientists using data from the European Space Agency's Gaia mission have explained why some asteroids tumble chaotically while others spin steadily, linking it to collision frequency. The findings, presented at the EPSC-DPS2025 Joint Meeting in Helsinki, show a gap in rotation speeds that divides asteroid populations and indicates most are loose rubble piles. This could improve strategies for deflecting hazardous asteroids.

Red Sea dried out and reflooded in catastrophic event 6.2 million years ago

Scientists at King Abdullah University of Science and Technology have confirmed that the Red Sea completely dried up about 6.2 million years ago, turning into a barren salt desert. A sudden flood from the Indian Ocean then refilled the basin in less than 100,000 years, carving deep channels and restoring marine life. This event, detailed through seismic imaging and other evidence, highlights the Red Sea's dramatic geological history.

Scientists prove moai statues walked using rocking motion

Researchers have confirmed that ancient Rapa Nui villagers moved massive moai statues upright using ropes and a rocking technique. Experiments with replicas and 3D models demonstrate the feasibility of this method, resolving a centuries-old mystery. The findings highlight the ingenuity of the island's people with limited resources.

2025 Nobel Prize in Physics awarded for macroscopic quantum tunneling

October 08, 2025 由 AI 报道

The 2025 Nobel Prize in Physics has been awarded to John Clarke, Michel H. Devoret, and John M. Martinis for their discovery of macroscopic quantum tunneling and energy quantization in an electrical circuit. Their work, conducted in the 1980s at the University of California, Berkeley, demonstrated quantum effects on a macroscale using a Josephson junction. The laureates will share $1.1 million, with the ceremony set for December 10, 2025, in Stockholm.