For a star, its initial mass is everything. It determines how quickly it burns through its hydrogen and how it will evolve once it starts fusing heavier elements. It's so well understood that ...

Blue straggler stars are the weird grandparents of the galaxy: They should be old, but they act young. Finding and studying these strange stars helps us understand the complicated life cycles of ...

Blue stars are by far the biggest and brightest stars in the galaxy. To the naked eye, the stars in the night sky all look very similar to each other, the main difference between them being that some ...

Comet 3I/ATLAS is the third ISO ever detected. It was discovered by the Asteroid Terrestrial-impact Last Alert System (ATLAS) station on 1 July 2025. It's traveling through the inner solar system at ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. On a clear, moonless night, you might be able to see thousands of ...

Dark matter particle and antiparticle collisions could make some stars immortal. I am still seeing recent studies on this topic—certainly ones newer than 7 years ago, when the article linked was ...