Amid the vast darkness of the Milky Way’s halo, a faint, enigmatic trail of stars has been spotted, one that could rewrite our understanding of the galaxy’s formation. C-19, a newly discovered stellar ...

Using the Mayall 4-meter telescope at Kitt Peak National Observatory, an international team of astronomers has observed ...

Milky Way billions of years ago. This remarkable journey, revealed through the most detailed catalog of similar stars to date ...

Researchers have uncovered evidence for our sun joining a mass migration of similar "twins" leaving the core regions of our galaxy, 4 to 6 billion years ago. The team created and studied an ...

Stellar astronomy and planetary systems form a cornerstone of astrophysical research, uniting our understanding of the life cycles of stars with the intricate architecture of the systems that form ...

New high-resolution simulations reveal that stellar rotation plays a crucial role in transporting material inside red giant stars.

Stellar activity and plasma turbulence could distort narrow radio signals before they leave their home planetary systems, potentially explaining part of the long silence in the search for ...

Chapter I: Introduction: the dawn of astronomy -- Chapter II: The earth -- Chapter III: Tools and methods -- Chapter IV: The sun -- Chapter V: The moon -- Chapter VI: Eclipses and tides -- Chapter VII ...

In Indigenous worldviews -- where humanity, nature, and the spiritual realm are closely connected -- the night sky provides spiritual and navigational guidance, timekeeping, weather prediction, and ...