Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

Some exoplanets in their stars' habitable zones may be distinctly uninhabitable due to solar flaring. Red dwarfs are known for powerful flaring, and since they're dim and their habitable zones are ...

The fact that this carbon dust can potentially survive for centuries could change how we think about the building blocks of new stars.