Stellar streams are trails of stars that astronomers can study to solve mysteries about the history of our Milky Way galaxy ...

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

Amid the vast darkness of the Milky Way’s halo, a faint, enigmatic trail of stars has been spotted, one that could rewrite ...

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 ...

Researchers have uncovered evidence for our sun joining a mass migration of similar "twins" leaving the core regions of our ...

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 ...

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

White dwarf stars represent the evolutionary endpoints of medium- and low-mass stars, comprising the dense, electron-degenerate cores left after nuclear fuel exhaustion. In binary systems, ...

Eliza Frankel, a University of Wyoming physics and astronomy Ph.D. student, poses with her award-winning poster at a meeting of the American Astronomical Society in Phoenix, Ariz. in early January.

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 ...

Our sun and a host of "solar twins" may have migrated away from the core of the Milky Way galaxy together long ago, potentially making the solar system more hospitable to life.

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 ...