🚀 Starlink Faces Major Shift

🛰️ Starlink constellation shifting gears

🌌 Gaia spots worlds being born

📡 ALMA array upgrade complete

🔭 Hubble sees galactic gas escape

🌠 Milky Way bulge star secrets

SpaceX engineers announced a major reconfiguration of the Starlink constellation, involving thousands of satellites. This plan aims to enhance overall space safety and network efficiency for their global internet service.

The company will lower approximately 4,400 satellites from a 550-kilometer orbit to a new operational altitude of 480 kilometers. This maneuver will be performed gradually using each satellite's onboard plasma thrusters.

According to SpaceX VP Michael Nicolls, the lower altitude reduces collision risks and ensures failed satellites deorbit in months. CEO Elon Musk added it also improves latency and increases customer density.

European Space Agency (ESA) astronomers utilized the Gaia space telescope to achieve a difficult feat. They successfully detected exoplanets during their formation phase inside the dusty disks surrounding young, newborn stars.

Gaia's precision astrometry measured the subtle gravitational wobbles that these unseen protoplanets induce on their host stars. This technique precisely tracks the star's position to infer the presence of orbiting bodies.

This breakthrough allows scientists to directly observe planetary system assembly for the first time. Astronomers believe this provides unprecedented data on the initial conditions and dynamics of how planets like Earth form.

The Fraunhofer Institute for Applied Solid State Physics (IAF) and Max Planck Institute for Radio Astronomy (MPIfR) upgraded the ALMA array. They supplied 145 new low-noise amplifiers for its receivers.

These amplifiers cover the Band 2 frequency range from 67 to 116 GHz, using indium gallium arsenide (InGaAs) transistor technology. They achieve an average noise temperature of just 22 Kelvin.

This upgrade dramatically increases ALMA's sensitivity, enabling more precise studies of the cold interstellar medium. Scientists can now better investigate planet formation and the complex organic molecules that are precursors to life.

NASA/ESA (European Space Agency) astronomers released a new Hubble Space Telescope image of NGC 4388. The image captures massive clouds of gas being violently ejected from the spiral galaxy’s central region.

Located 60 million light-years away, the galaxy exhibits distinct streams of ionized gas extending thousands of light-years above and below its galactic plane, likely driven by its active galactic nucleus.

These observations help scientists understand galactic feedback, where energy from a central supermassive black hole expels gas. This process can regulate or even halt star formation within the host galaxy.

An international team of astronomers published a new survey analyzing extra-tidal stars in the Milky Way's central bulge. Their work traces the origins of stars gravitationally stripped from other systems.

Using kinematic and chemical abundance data, they identified stars with orbits and metallicity inconsistent with the main bulge population. These stars likely originated from tidally disrupted globular clusters or dwarf galaxies.

This "galactic archaeology" provides direct evidence of the Milky Way's past mergers and accretion events. According to the study, this helps reconstruct our galaxy's violent formation history over billions of years.