Researchers say the isolated white dwarfs Gandalf and Moon-Sized define a new class of stellar…
Browsing: Stellar Evolution
Stellar evolution is the process by which a star undergoes a sequence of radical changes during its lifetime. Depending on the mass of the star, its life cycle can span from a few million years for the most massive stars to trillions of years for the least massive ones. The journey begins with the gravitational collapse of a cloud of gas and dust, leading to the formation of a protostar when the core temperature gets high enough to start nuclear fusion. In this phase, hydrogen nuclei fuse to form helium, releasing energy that makes the star shine.
A massive star’s sudden transformation may signal an approaching supernova. One of the largest stars…
New high-resolution simulations reveal that stellar rotation plays a crucial role in transporting material inside…
Hubble observations reveal a giant, turbulent planet-forming disk that may reshape theories of how planetary…
A detailed suite of simulations conducted by astrophysicists at the Flatiron Institute and their collaborators…
Astronomers have uncovered clues to a red giant’s chaotic past by detecting subtle stellar vibrations…
A new model sheds light on the long-standing chemical mysteries found in globular clusters, the…
V Sagittae’s violent mass transfer hints at an imminent nova—and a future supernova visible from…
A companion star may have stripped silicon layers. This provided a new window into stellar…
A distant supernova exposed elements from a star’s core. The result reshapes ideas of how…
White dwarfs may still host habitable planets. Conditions like tidal heating and migration shape their…
NGC 3603-A1 is a pair of giant stars locked in a rapid 3.8-day orbit. Their…
Gemini North telescope in Hawai‘i uncovers hidden companion to Betelgeuse, shedding light on ancient stellar…
Collapsing stars might act as cosmic laboratories for discovering hidden neutrino interactions. Neutrinos are among…
By studying faint vibrations within stars, scientists using the Keck Planet Finder have discovered internal…
New experiments on thallium decay have helped determine the Sun formed over 10–20 million years,…
Astronomers at the European Southern Observatory have revealed that the peculiar characteristics of the HD…
Astronomers have verified that variations in the chemical makeup of binary stars originate from the…