New observations show a star that blew up in two separate bursts, confirming a long-suspected cosmic phenomenon called a ...

I’ve spent much of my long life studying — and trying to understand — the history of the universe. Along the way, I have been constantly reminded that science is essentially international: Science ...

The dazzling panoramic shot released Wednesday of the Sculptor galaxy by a telescope in Chile is so detailed that it's already serving as a star-packed map. Scientists used the European Southern ...

Celebrate the Fourth with the Fireworks Galaxy, then check out the Demon Star Algol and the Full Buck Moon in the sky this ...