For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

Galileo continued writing in conversational language for his landmark 1632 work, Dialogo sopra i due massimi sistemi del ...

Less than two weeks later, on June 25, reports began to circulate of a second nova blossoming in the southern night sky, this time in the constellation Vela. This nova — later designated V572 Velorum ...

Two stellar explosions have created an unprecedented astronomical phenomenon, with both outbursts now visible to the naked ...