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 ...

Our Sun is about halfway through its life, which means Earth is as well. After a star exhausts its hydrogen nuclear fuel, its ...

Binary star systems are not rare. Neither are systems where one star is a remnant like a white dwarf or neutron star, and its companion is on the main sequence. In those systems, the dense remnant can ...

Astronomers have discovered that aging stars may be devouring their closest giant planets as they swell into red giants. Using NASA’s TESS telescope to study nearly half a million stars, scientists ...

"We expected to see this effect, but we were still surprised by just how efficient these stars seem to be at engulfing their close planets." Using NASA's Transiting Exoplanet Survey Satellite (TESS), ...

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 ...