🚀 How Do Black Hole Jets Form?

🌌 Black hole jet rate defined

🛰️ Distant jellyfish galaxy observed

🌍 NASA extends Terra mission

💫 Relativistic binary star timed

🧪 Star seeds for new life

An international team from the Max Planck Institute studied relativistic jets from supermassive black holes, aiming to find a universal scaling law that governs their power output across different black hole masses.

The team analyzed X-ray and radio data from 73 active galactic nuclei, finding a consistent relationship between jet power, black hole mass, and accretion rate.

This discovery provides a fundamental tool for estimating black hole energy feedback into host galaxies, which, according to the researchers, is a critical parameter in cosmological simulations of galaxy evolution.

University of Waterloo astrophysicists, led by Dr. Ian Roberts, analyzed James Webb Space Telescope (JWST) data to study an exceptionally distant jellyfish galaxy undergoing ram-pressure stripping in the early universe.

The galaxy, located at a redshift of z = 1.156, shows bright blue knots of star formation in its gaseous trails, indicating that stars formed outside the main disk 8.5 billion years ago.

This observation suggests galaxy cluster environments were harsh enough to strip galaxies earlier than expected, challenging previous models of galaxy evolution and the formation of "dead" galaxies, according to the team.

NASA (National Aeronautics and Space Administration) mission operators are adjusting power management on the 25-year-old Terra satellite to extend its operational life by selectively deactivating specific instrument subsystems for Earth observation.

Operators permanently shut down the ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) Thermal Infrared subsystem on February 6, preserving power for the MODIS, MISR, and CERES-Fore instruments.

This strategy prioritizes the most critical data streams, ensuring Terra continues providing its long-term climate record, which scientists rely on to monitor global environmental changes with unparalleled continuity and precision.

Jodrell Bank Centre for Astrophysics astronomers completed a 20-year timing campaign of a relativistic binary pulsar system, meticulously tracking its orbital decay to test the predictions of Einstein's general relativity.

The team measured the orbital period of pulsar PSR J0737−3039A/B, observing a decay of 7.6 microseconds per year, which matches predictions of gravitational wave emission to within 0.013% precision.

This precise agreement provides one of the strongest confirmations of general relativity in a strong-field regime, constraining alternative theories of gravity, according to the published paper's authors and their analysis.

Astronomer Yuxin Lin and colleagues searched a pre-stellar core for prebiotic chemicals, investigating how the essential ingredients for life might be incorporated into newly forming planetary systems before star ignition.

They detected the organic molecule methanimine (CH2NH2) scattered throughout the dense gas and dust cloud L1544, located 554 light-years away in the Taurus Molecular Cloud, using radio telescope spectroscopy.

This discovery demonstrates that key prebiotic nitrogen and carbon chemistry is active before stellar collapse, ensuring organic precursors can be inherited by the next generation of stars and planets, Lin wrote.