The cosmos has delivered a rare kind of fireworks display, and astronomers are racing to understand what it means. A strange double flash from a distant galaxy appears to show two neutron stars ...

A faint, irradiated streak carved into nearby interstellar clouds is giving astronomers their clearest evidence yet that two massive stars once brushed past our cosmic neighborhood and almost slammed ...

Astronomers traced a mysterious 'scar' of ionized gas around the solar system to two stars that had a close flyby with our sun millions of years ago. When you purchase through links on our site, we ...