This near-infrared and visible image shows the galaxy M89 as viewed by the Hubble Space Telescope’s Wide field and Planetary Camera 2. The 2019 image captures M89’s bright central nucleus and was ...

This week’s first small-telescope target is a pair of double stars in Corvus the Crow. The first, Algorab, also goes by the name Delta (δ) Corvi. Algorab is the “pointer” star in Corvus that lies ...

This huge ball of stars—around 100 billion in total—is an elliptical galaxy located some 55 million light-years away. Known as Messier 89, this galaxy appears to be perfectly spherical; which is ...

Using NASA's Chandra and ESA's XMM-Newton space observatories, Indian astronomers have explored the population of ultraluminous X-ray sources in the galaxy NGC 5813, which resulted in the detection of ...