TEHRAN, May 04 -Two neutron stars collided 4.6 billion years ago near the Earth's solar system, sending the planet some fraction of its most precious metals, a new study says.
TEHRAN, Apr 14 -Neutron stars, their birth, merging, and collisions, have always been shrouded in mystery, largely due to their extreme density, which can hardly be reproduced in astrobiology laboratories.