A red giant star and white dwarf orbit each other in this animation of a nova similar to T Coronae Borealis. NASA/Goddard Space Flight Center Astronomers have been watching a small constellation ...

A study from 2023 concluded that ZTF SLRN-2020 was an evolved sun-like star called a "red giant" that had expanded, in the process engulfing a gas giant planet orbiting around it. The flash of ...

T CrB is a symbiotic binary, a vampire system in which a white dwarf is siphoning material from a red giant star. A white dwarf is the dense, compact core remnant of a once sun-like star ...

Stargazers watched the skies with bated breath on Thursday night in hopes that T Coronae Borealis, a system consisting of a hot, red giant star and a cool, white dwarf star about 3,000 light-years ...

Kohoutek 4-55 is a dazzling planetary nebula captured in vivid color by the Hubble Space Telescope. Formed by the dramatic death of a giant star, this cosmic cloud glows with energized gases and ...

The stars expand and can engulf nearby planets, effectively incinerating them. In approximately five billion years, Earth’s own sun will turn into a red giant and engulf planets, including our ...

Radial velocity here, for context, refers to the Doppler shifted motions of the individual stars and the matter being transferred between the red giant, what's known as the "accretion disk" and ...