The energy of the nearby star and the deflection of the jets were used to measure the jets' power.

Since its discovery 45 years ago, Cygnus X-1 has been one of the most intensively studied cosmic X-ray sources. About a decade after its discovery, Cygnus X-1 secured a place in the history of ...

With the bright Moon lighting the sky our focus is on easy-to-spot targets tonight, such as Albireo at the head of Cygnus the Swan. Also cataloged as Beta (β) Cygni, Albireo is a stunning double star ...

Albireo (β Cygni), located in the constellation Cygnus, is a double star system easily observable in the eastern sky after sunset during summer months. Albireo's components exhibit contrasting colors, ...

This wide-field, ground-based image provided by NASA on Wednesday, April, 15, 2026, shows the visible light component of Cygnus X-1, center, a rich source of X-rays in the constellation of Cygnus. via ...

Almost directly overhead in this month’s early-evening Colorado sky, an observer can view one of summertime’s more prominent constellations, Cygnus the Swan. The principal stars of this constellation ...

An international team led by researchers from the University of Cologne has solved the mystery of an extraordinary phenomenon known as the "Diamond Ring" in the star-forming region Cygnus X, a huge, ...

There are so many great stories in the over 60 constellations available to us in our night sky. There are heroes, hunters, musical instruments, royalty and all kinds of critters, including eight birds ...

I have some news to to share. And I suggest you take this lying down. Literally. The next clear night, sprawl on your back and look straight up. Almost directly overhead you'll face a swan of stars ...