Scientists have created a computer simulation that mimics what the Square Kilometer Array Low-frequency (SKA-Low) telescope ...

A near-complete census of our interstellar neighborhood hopes to answer how stars, brown dwarfs and rogue planets form ...

A new cosmic deep field map from the COSMOS collaboration, powered by the James Webb Space Telescope, is rewriting what ...

Dark matter affects how stars move within galaxies, how galaxies build up over time, and how everything in the universe is held together—but no existing tool has directly detected it. While dark ...

A computer simulation shows how two neutron stars of unequal mass merge, form a black hole and spit out a jet of high energy matter.

When is the first day of summer? Find out all the facts about the longest day of the year! When is the first day of summer in ...

Other astronomers used similar techniques and measured the parallax of Sirius, the brightest star in the night sky. Sirius’ parallax is the very thin angle formed by the positions of Earth ...

Sirius, in the constellation Canis Major, is the brightest star in the sky. It’s twice as massive as the Sun. Alpha Centauri is a triple star system, the third brightest and closest star system ...

Canis Major’s sparkling eye is the brightest star in the sky: Sirius. The dog days of summer ... the shoulder to the viewer’s left and Rigel his foot on the right. Sitting between Rigel ...

Sirius, the brightest of the three stars, will appear first ... Castor and Pollux (from the Mars Triangle), as well as Rigel, Capella, and Aldebaran, rises in the east and sets in the west ...

Then look for the bright star on the bottom or Orion — opposite Rigel. Run a line through it ... It’s in Canis Minor and always rises before Sirius. If you look toward the west you’ll ...