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 ...

Astronomers have discovered the first pairs of white dwarf and main sequence stars -- 'dead' remnants and 'living' stars -- in young star clusters. This breakthrough offers new insights on an extreme ...

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 ...

The Sun's transition from the main sequence to the red giant phase is a gradual process, spanning approximately a billion years. This transition begins with a subgiant phase where core hydrogen fusion ...

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 ...

This image from the ALMA telescope shows star system HD101584 and the complex gas clouds surrounding the binary. It is the result of a pair of stars sharing a common outer layer during their last ...

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 ...