Scientists have discovered that ultraheavy atomic nuclei could explain some of the highest-energy cosmic rays ever observed. The particles may come from extreme events such as neutron-star mergers and collapsing massive stars. Scientists may have uncovered a new clue behind مزید پڑھیں
A massive star’s sudden transformation may signal an approaching supernova. One of the largest stars ever discovered has undergone a dramatic transformation, and scientists believe it may be nearing a violent end. New research led by Gonzalo Muñoz-Sanchez at the مزید پڑھیں
Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown. The surface of Earth has a measurable size. Scientists can calculate its total area, and if the planet were مزید پڑھیں