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 ...

Research led by Daniel Ivanov, a physics and astronomy graduate student in the Kenneth P. Dietrich School of Arts and Sciences at Pitt, uncovered a contender for one of the earliest observed spiral ...

This ESA/Hubble picture highlights another view of a distant stellar birthplace. Captured in a parallel field to a recently ...

Astronomers have confirmed the existence of a companion star in a tight orbit around Betelgeuse, resolving a long-standing mystery about the star’s varying brightness. A 600-year-old stellar event ...

Astronomers using NASA’s Chandra X-ray Observatory have clocked the fastest wind yet discovered blowing off a disk around a stellar-mass black hole. This result has important implications for ...

They’re bright and blue — and a bit strange. They’re a new type of stellar explosion that was recently discovered by a team of astronomers led by the California Institute of Technology (Caltech).

The sun is not only our closest stellar neighbor, it's also the star we understand the most. As we've observed it over the ...

A violent outburst from a nearby star has given astronomers a rare, close-up look at how stellar tempers can threaten the ...

Plans are underway to add a seventh movable telescope to Georgia State University’s Center for High Angular Resolution Astronomy— known as the CHARA Array—that would increase the resolution, or the ...

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 ...