Add Yahoo as a preferred source to see more of our stories on Google. On October 18, 2025, the European Southern Observatory's (ESO) 4MOST (4-meter Multi-Object Spectroscopic Telescope) instrument ...

New research published by Michigan State University astrophysicists could help scientists answer a century-old question: Where did galactic cosmic rays come from? Cosmic rays—high-energy particles ...

On October 18, 2025, the European Southern Observatory's (ESO) 4MOST (4-meter Multi-Object Spectroscopic Telescope) instrument observed the sky with its full array of 2,400 optical fibers for the ...